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157255338 = 23172715689
BaseRepresentation
bin10010101111110…
…00011010101010
3101221220101202210
421113320122222
5310224132323
623334305550
73616435242
oct1127703252
9357811683
10157255338
1180848299
12447b82b6
132676c3c6
1416c56b22
15dc14293
hex95f86aa

157255338 has 32 divisors (see below), whose sum is σ = 334298880. Its totient is φ = 49144320.

The previous prime is 157255331. The next prime is 157255339. The reversal of 157255338 is 833552751.

It is a junction number, because it is equal to n+sod(n) for n = 157255296 and 157255305.

It is not an unprimeable number, because it can be changed into a prime (157255331) 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, 24798 + ... + 30486.

It is an arithmetic number, because the mean of its divisors is an integer number (10446840).

Almost surely, 2157255338 is an apocalyptic number.

157255338 is an abundant number, since it is smaller than the sum of its proper divisors (177043542).

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

157255338 is a wasteful number, since it uses less digits than its factorization.

157255338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982.

The product of its digits is 126000, while the sum is 39.

The square root of 157255338 is about 12540.1490421765. The cubic root of 157255338 is about 539.7613691852.

The spelling of 157255338 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 17 34 51 102 271 542 813 1626 4607 5689 9214 11378 13821 17067 27642 34134 96713 193426 290139 580278 1541719 3083438 4625157 9250314 26209223 52418446 78627669 157255338