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157672068 = 22361215399
BaseRepresentation
bin10010110010111…
…10001010000100
3101222200120102020
421121132022010
5310331001233
623351243140
73623122221
oct1131361204
9358616366
10157672068
11810023a4
12449794b0
1326886ca8
1416d24948
15dc979b3
hex965e284

157672068 has 24 divisors (see below), whose sum is σ = 373934400. Its totient is φ = 51695520.

The previous prime is 157672063. The next prime is 157672069. The reversal of 157672068 is 860276751.

It is not an unprimeable number, because it can be changed into a prime (157672063) 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, 106968 + ... + 108431.

It is an arithmetic number, because the mean of its divisors is an integer number (15580600).

Almost surely, 2157672068 is an apocalyptic number.

It is an amenable number.

157672068 is an abundant number, since it is smaller than the sum of its proper divisors (216262332).

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

157672068 is a wasteful number, since it uses less digits than its factorization.

157672068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215467 (or 215465 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 157672068 is about 12556.7538798847. The cubic root of 157672068 is about 540.2377416808.

The spelling of 157672068 in words is "one hundred fifty-seven million, six hundred seventy-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 215399 430798 646197 861596 1292394 2584788 13139339 26278678 39418017 52557356 78836034 157672068