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157214732 = 2271553573
BaseRepresentation
bin10010101111011…
…10100000001100
3101221211100001212
421113232200030
5310221332412
623333353552
73616205663
oct1127564014
9357740055
10157214732
118081a834
12447988b8
1326756a8c
1416c45dda
15dc07222
hex95ee80c

157214732 has 12 divisors (see below), whose sum is σ = 279001296. Its totient is φ = 77500080.

The previous prime is 157214719. The next prime is 157214737. The reversal of 157214732 is 237412751.

It is not an unprimeable number, because it can be changed into a prime (157214737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276503 + ... + 277070.

It is an arithmetic number, because the mean of its divisors is an integer number (23250108).

Almost surely, 2157214732 is an apocalyptic number.

It is an amenable number.

157214732 is a deficient number, since it is larger than the sum of its proper divisors (121786564).

157214732 is a wasteful number, since it uses less digits than its factorization.

157214732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553648 (or 553646 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 157214732 is about 12538.5298978788. The cubic root of 157214732 is about 539.7149066672.

The spelling of 157214732 in words is "one hundred fifty-seven million, two hundred fourteen thousand, seven hundred thirty-two".

Divisors: 1 2 4 71 142 284 553573 1107146 2214292 39303683 78607366 157214732