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157634916 = 223234671223
BaseRepresentation
bin10010110010101…
…01000101100100
3101222121200110020
421121111011210
5310323304131
623350355140
73622606005
oct1131250544
9358550406
10157634916
1180a8749a
124495bab0
13268730ca
1416d151ac
15dc8b996
hex9655164

157634916 has 48 divisors (see below), whose sum is σ = 384943104. Its totient is φ = 50111776.

The previous prime is 157634903. The next prime is 157634921. The reversal of 157634916 is 619436751.

157634916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128281 + ... + 129503.

It is an arithmetic number, because the mean of its divisors is an integer number (8019648).

Almost surely, 2157634916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157634916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192471552).

157634916 is an abundant number, since it is smaller than the sum of its proper divisors (227308188).

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

157634916 is a wasteful number, since it uses less digits than its factorization.

157634916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1718 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 157634916 is about 12555.2744294977. The cubic root of 157634916 is about 540.1953065823.

The spelling of 157634916 in words is "one hundred fifty-seven million, six hundred thirty-four thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 467 934 1223 1401 1868 2446 2802 3669 4892 5604 7338 10741 14676 21482 28129 32223 42964 56258 64446 84387 112516 128892 168774 337548 571141 1142282 1713423 2284564 3426846 6853692 13136243 26272486 39408729 52544972 78817458 157634916