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157214688 = 2532716043
BaseRepresentation
bin10010101111011…
…10011111100000
3101221211100000020
421113232133200
5310221332223
623333353440
73616205601
oct1127563740
9357740006
10157214688
118081a7a4
1244798880
1326756a57
1416c45da8
15dc071e3
hex95ee7e0

157214688 has 48 divisors (see below), whose sum is σ = 414279936. Its totient is φ = 52202880.

The previous prime is 157214677. The next prime is 157214689. The reversal of 157214688 is 886412751.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157214689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22995 + ... + 29037.

It is an arithmetic number, because the mean of its divisors is an integer number (8630832).

Almost surely, 2157214688 is an apocalyptic number.

It is an amenable number.

157214688 is an abundant number, since it is smaller than the sum of its proper divisors (257065248).

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

157214688 is a wasteful number, since it uses less digits than its factorization.

157214688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327 (or 6319 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 157214688 is about 12538.5281432870. The cubic root of 157214688 is about 539.7148563168.

The spelling of 157214688 in words is "one hundred fifty-seven million, two hundred fourteen thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 271 542 813 1084 1626 2168 3252 4336 6043 6504 8672 12086 13008 18129 24172 26016 36258 48344 72516 96688 145032 193376 290064 580128 1637653 3275306 4912959 6550612 9825918 13101224 19651836 26202448 39303672 52404896 78607344 157214688