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157156492 = 2252737451
BaseRepresentation
bin10010101111000…
…00010010001100
3101221201101011211
421113200102030
5310213001432
623332224204
73615544123
oct1127402214
9357641154
10157156492
118078aaa9
124476b064
132673640c
1416c2caba
15dbe4d47
hex95e048c

157156492 has 12 divisors (see below), whose sum is σ = 275112936. Its totient is φ = 78552800.

The previous prime is 157156459. The next prime is 157156499. The reversal of 157156492 is 294651751.

It is not an unprimeable number, because it can be changed into a prime (157156499) 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, 17367 + ... + 24817.

It is an arithmetic number, because the mean of its divisors is an integer number (22926078).

Almost surely, 2157156492 is an apocalyptic number.

It is an amenable number.

157156492 is a deficient number, since it is larger than the sum of its proper divisors (117956444).

157156492 is a wasteful number, since it uses less digits than its factorization.

157156492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728 (or 12726 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 157156492 is about 12536.2072414267. The cubic root of 157156492 is about 539.6482528662.

The spelling of 157156492 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, four hundred ninety-two".

Divisors: 1 2 4 5273 7451 10546 14902 21092 29804 39289123 78578246 157156492