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157438912 = 262984827
BaseRepresentation
bin10010110001001…
…01001111000000
3101222020201120211
421120211033000
5310301021122
623342243504
73621131401
oct1130451700
9358221524
10157438912
1180963204
1244886594
1326804b27
1416ca39a8
15dc4d877
hex96253c0

157438912 has 28 divisors (see below), whose sum is σ = 323194680. Its totient is φ = 76004096.

The previous prime is 157438907. The next prime is 157438927. The reversal of 157438912 is 219834751.

It is a super-2 number, since 2×1574389122 = 49574022023487488, 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40558 + ... + 44269.

Almost surely, 2157438912 is an apocalyptic number.

It is an amenable number.

157438912 is an abundant number, since it is smaller than the sum of its proper divisors (165755768).

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

157438912 is an equidigital number, since it uses as much as digits as its factorization.

157438912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84868 (or 84858 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 157438912 is about 12547.4663577951. The cubic root of 157438912 is about 539.9713199217.

The spelling of 157438912 in words is "one hundred fifty-seven million, four hundred thirty-eight thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 29 32 58 64 116 232 464 928 1856 84827 169654 339308 678616 1357232 2459983 2714464 4919966 5428928 9839932 19679864 39359728 78719456 157438912