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138014480 = 245192931101
BaseRepresentation
bin10000011100111…
…10111100010000
3100121200212021102
420032132330100
5240312430410
621410043532
73264050402
oct1016367420
9317625242
10138014480
11709a635a
123a2795a8
1322793696
1414488b72
15c1b32a5
hex839ef10

138014480 has 160 divisors (see below), whose sum is σ = 364262400. Its totient is φ = 48384000.

The previous prime is 138014473. The next prime is 138014489. The reversal of 138014480 is 84410831.

138014480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (138014489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1366430 + ... + 1366530.

It is an arithmetic number, because the mean of its divisors is an integer number (2276640).

Almost surely, 2138014480 is an apocalyptic number.

138014480 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 138014480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182131200).

138014480 is an abundant number, since it is smaller than the sum of its proper divisors (226247920).

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

138014480 is a wasteful number, since it uses less digits than its factorization.

138014480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 138014480 is about 11747.9564180329. The cubic root of 138014480 is about 516.7829988944.

It can be divided in two parts, 13801 and 4480, that added together give a palindrome (18281).

The spelling of 138014480 in words is "one hundred thirty-eight million, fourteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 29 31 38 40 58 62 76 80 95 101 116 124 145 152 155 190 202 232 248 290 304 310 380 404 464 496 505 551 580 589 620 760 808 899 1010 1102 1160 1178 1240 1520 1616 1798 1919 2020 2204 2320 2356 2480 2755 2929 2945 3131 3596 3838 4040 4408 4495 4712 5510 5858 5890 6262 7192 7676 8080 8816 8990 9424 9595 11020 11716 11780 12524 14384 14645 15352 15655 17081 17980 19190 22040 23432 23560 25048 29290 30704 31310 34162 35960 38380 44080 46864 47120 50096 55651 58580 59489 62620 68324 71920 76760 85405 90799 111302 117160 118978 125240 136648 153520 170810 181598 222604 234320 237956 250480 273296 278255 297445 341620 363196 445208 453995 475912 556510 594890 683240 726392 890416 907990 951824 1113020 1189780 1366480 1452784 1725181 1815980 2226040 2379560 3450362 3631960 4452080 4759120 6900724 7263920 8625905 13801448 17251810 27602896 34503620 69007240 138014480