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157537938 = 23130720089
BaseRepresentation
bin10010110001111…
…01011010010010
3101222102202102110
421120331122102
5310312203223
623344330150
73622023165
oct1130753222
9358382373
10157537938
1180a20648
1244913956
132683ac1c
1416ccbadc
15dc6cd93
hex963d692

157537938 has 16 divisors (see below), whose sum is σ = 315332640. Its totient is φ = 52469856.

The previous prime is 157537909. The next prime is 157537969. The reversal of 157537938 is 839735751.

157537938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 2203 + ... + 17886.

It is an arithmetic number, because the mean of its divisors is an integer number (19708290).

Almost surely, 2157537938 is an apocalyptic number.

157537938 is an abundant number, since it is smaller than the sum of its proper divisors (157794702).

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

157537938 is a wasteful number, since it uses less digits than its factorization.

157537938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21401.

The product of its digits is 793800, while the sum is 48.

The square root of 157537938 is about 12551.4117931012. The cubic root of 157537938 is about 540.0845066648.

The spelling of 157537938 in words is "one hundred fifty-seven million, five hundred thirty-seven thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 1307 2614 3921 7842 20089 40178 60267 120534 26256323 52512646 78768969 157537938