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157156904 = 23191033927
BaseRepresentation
bin10010101111000…
…00011000101000
3101221201101202002
421113200120220
5310213010104
623332230132
73615545252
oct1127403050
9357641662
10157156904
1180790343
124476b348
1326736668
1416c2ccd2
15dbe501e
hex95e0628

157156904 has 16 divisors (see below), whose sum is σ = 310178400. Its totient is φ = 74442672.

The previous prime is 157156903. The next prime is 157156919. The reversal of 157156904 is 409651751.

157156904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (157156903) by changing a digit.

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, 516812 + ... + 517115.

It is an arithmetic number, because the mean of its divisors is an integer number (19386150).

Almost surely, 2157156904 is an apocalyptic number.

It is an amenable number.

157156904 is a deficient number, since it is larger than the sum of its proper divisors (153021496).

157156904 is a wasteful number, since it uses less digits than its factorization.

157156904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033952 (or 1033948 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 157156904 is about 12536.2236738182. The cubic root of 157156904 is about 539.6487244447.

The spelling of 157156904 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, nine hundred four".

Divisors: 1 2 4 8 19 38 76 152 1033927 2067854 4135708 8271416 19644613 39289226 78578452 157156904