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128331383115060 = 223251396535778479
BaseRepresentation
bin11101001011011101111010…
…100000010000110100110100
3121211101100201201221220002200
4131023131322200100310310
5113310040133034140220
61132534342403104500
736013431210204246
oct3513357240206464
9554340651856080
10128331383115060
11379880411a3574
1212487594672130
13567b79c9309a8
1423993b4854096
15ec82d9010890
hex74b77a810d34

128331383115060 has 144 divisors (see below), whose sum is σ = 392083374009600. Its totient is φ = 33974550104832.

The previous prime is 128331383115037. The next prime is 128331383115083. The reversal of 128331383115060 is 60511383133821.

128331383115060 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 3 + 138 + 3 + 1 + 1 + 506 + 0 = 666.

128331383115060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (128331383115037) and next prime (128331383115083).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 128331383114997 and 128331383115015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1635192901 + ... + 1635271379.

It is an arithmetic number, because the mean of its divisors is an integer number (2722801208400).

Almost surely, 2128331383115060 is an apocalyptic number.

128331383115060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128331383115060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196041687004800).

128331383115060 is an abundant number, since it is smaller than the sum of its proper divisors (263751990894540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128331383115060 is a wasteful number, since it uses less digits than its factorization.

128331383115060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143990 (or 143985 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 128331383115060 in words is "one hundred twenty-eight trillion, three hundred thirty-one billion, three hundred eighty-three million, one hundred fifteen thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 139 180 278 417 556 695 834 1251 1390 1668 2085 2502 2780 4170 5004 6255 8340 12510 25020 65357 78479 130714 156958 196071 235437 261428 313916 326785 392142 392395 470874 588213 653570 706311 784284 784790 941748 980355 1176426 1177185 1307140 1412622 1569580 1960710 2352852 2354370 2825244 2941065 3531555 3921420 4708740 5882130 7063110 9084623 10908581 11764260 14126220 18169246 21817162 27253869 32725743 36338492 43634324 45423115 54507738 54542905 65451486 81761607 90846230 98177229 109015476 109085810 130902972 136269345 163523214 163628715 181692460 196354458 218171620 272538690 327046428 327257430 392708916 408808035 490886145 545077380 654514860 817616070 981772290 1635232140 1963544580 5129152003 10258304006 15387456009 20516608012 25645760015 30774912018 46162368027 51291520030 61549824036 76937280045 92324736054 102583040060 153874560090 184649472108 230811840135 307749120180 461623680270 712952128417 923247360540 1425904256834 2138856385251 2851808513668 3564760642085 4277712770502 6416569155753 7129521284170 8555425541004 10694281926255 12833138311506 14259042568340 21388563852510 25666276623012 32082845778765 42777127705020 64165691557530 128331383115060