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157144056 = 23317599643
BaseRepresentation
bin10010101110111…
…01001111111000
3101221200202010020
421113131033320
5310212102211
623332050440
73615462636
oct1127351770
9357622106
10157144056
1180781723
1244763a20
1326730864
1416c28356
15dbe1306
hex95dd3f8

157144056 has 64 divisors (see below), whose sum is σ = 417312000. Its totient is φ = 49141248.

The previous prime is 157144049. The next prime is 157144067. The reversal of 157144056 is 650441751.

It is a super-2 number, since 2×1571440562 = 49388508672262272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244071 + ... + 244713.

It is an arithmetic number, because the mean of its divisors is an integer number (6520500).

Almost surely, 2157144056 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 157144056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208656000).

157144056 is an abundant number, since it is smaller than the sum of its proper divisors (260167944).

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

157144056 is a wasteful number, since it uses less digits than its factorization.

157144056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 157144056 is about 12535.7112283269. The cubic root of 157144056 is about 539.6340181319.

The spelling of 157144056 in words is "one hundred fifty-seven million, one hundred forty-four thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 599 643 1198 1286 1797 1929 2396 2572 3594 3858 4792 5144 7188 7716 10183 10931 14376 15432 20366 21862 30549 32793 40732 43724 61098 65586 81464 87448 122196 131172 244392 262344 385157 770314 1155471 1540628 2310942 3081256 4621884 6547669 9243768 13095338 19643007 26190676 39286014 52381352 78572028 157144056