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157439932 = 22138934019
BaseRepresentation
bin10010110001001…
…01011110111100
3101222020202222121
421120211132330
5310301034212
623342252324
73621134356
oct1130453674
9358222877
10157439932
1180963a51
12448870a4
1326805430
1416ca40d6
15dc4dd07
hex96257bc

157439932 has 24 divisors (see below), whose sum is σ = 300056400. Its totient is φ = 71846016.

The previous prime is 157439923. The next prime is 157439951. The reversal of 157439932 is 239934751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12382 + ... + 21637.

It is an arithmetic number, because the mean of its divisors is an integer number (12502350).

Almost surely, 2157439932 is an apocalyptic number.

It is an amenable number.

157439932 is a deficient number, since it is larger than the sum of its proper divisors (142616468).

157439932 is a wasteful number, since it uses less digits than its factorization.

157439932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34125 (or 34123 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 157439932 is about 12547.5070033852. The cubic root of 157439932 is about 539.9724860238.

The spelling of 157439932 in words is "one hundred fifty-seven million, four hundred thirty-nine thousand, nine hundred thirty-two".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 34019 68038 136076 442247 884494 1768988 3027691 6055382 12110764 39359983 78719966 157439932