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105135450240 = 273592958943
BaseRepresentation
bin110000111101010001…
…1111010100010000000
3101001101001220020121110
41201322203322202000
53210304133401430
6120144253323320
710411232403432
oct1417243724200
9331331806543
10105135450240
1140651247957
1218461796540
139bb67447b2
145135100652
152b04ee97b0
hex187a8fa880

105135450240 has 128 divisors (see below), whose sum is σ = 335485670400. Its totient is φ = 28005466112.

The previous prime is 105135450227. The next prime is 105135450241. The reversal of 105135450240 is 42054531501.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1051354502402 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 105135450198 and 105135450207.

It is not an unprimeable number, because it can be changed into a prime (105135450241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754209 + ... + 1813151.

It is an arithmetic number, because the mean of its divisors is an integer number (2620981800).

Almost surely, 2105135450240 is an apocalyptic number.

105135450240 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 105135450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167742835200).

105135450240 is an abundant number, since it is smaller than the sum of its proper divisors (230350220160).

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

105135450240 is an equidigital number, since it uses as much as digits as its factorization.

105135450240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59894 (or 59882 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 105135450240 its reverse (42054531501), we get a palindrome (147189981741).

The spelling of 105135450240 in words is "one hundred five billion, one hundred thirty-five million, four hundred fifty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 929 960 1858 1920 2787 3716 4645 5574 7432 9290 11148 13935 14864 18580 22296 27870 29728 37160 44592 55740 58943 59456 74320 89184 111480 117886 118912 148640 176829 178368 222960 235772 294715 297280 353658 356736 445920 471544 589430 594560 707316 884145 891840 943088 1178860 1414632 1768290 1783680 1886176 2357720 2829264 3536580 3772352 4715440 5658528 7073160 7544704 9430880 11317056 14146320 18861760 22634112 28292640 37723520 54758047 56585280 109516094 113170560 164274141 219032188 273790235 328548282 438064376 547580470 657096564 821370705 876128752 1095160940 1314193128 1642741410 1752257504 2190321880 2628386256 3285482820 3504515008 4380643760 5256772512 6570965640 7009030016 8761287520 10513545024 13141931280 17522575040 21027090048 26283862560 35045150080 52567725120 105135450240