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157072856 = 2379248533
BaseRepresentation
bin10010101110010…
…11110111011000
3101221120010110012
421113023313120
5310202312411
623330341052
73615045233
oct1127136730
9357503405
10157072856
1180733186
124472a788
1326707325
1416c0a41a
15dbca18b
hex95cbdd8

157072856 has 16 divisors (see below), whose sum is σ = 298240800. Its totient is φ = 77541984.

The previous prime is 157072847. The next prime is 157072871. The reversal of 157072856 is 658270751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123635 + ... + 124898.

It is an arithmetic number, because the mean of its divisors is an integer number (18640050).

Almost surely, 2157072856 is an apocalyptic number.

It is an amenable number.

157072856 is a deficient number, since it is larger than the sum of its proper divisors (141167944).

157072856 is a wasteful number, since it uses less digits than its factorization.

157072856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248618 (or 248614 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 157072856 is about 12532.8710198422. The cubic root of 157072856 is about 539.5525053524.

The spelling of 157072856 in words is "one hundred fifty-seven million, seventy-two thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 79 158 316 632 248533 497066 994132 1988264 19634107 39268214 78536428 157072856