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392972934 = 23193447131
BaseRepresentation
bin10111011011000…
…100101010000110
31000101110002112010
4113123010222012
51301100113214
6102554435050
712511133454
oct2733045206
91011402463
10392972934
11191906422
12ab732a86
1363550c83
143a2959d4
1524776659
hex176c4a86

392972934 has 16 divisors (see below), whose sum is σ = 827311680. Its totient is φ = 124096680.

The previous prime is 392972891. The next prime is 392972959. The reversal of 392972934 is 439279293.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723452 + ... + 1723679.

It is an arithmetic number, because the mean of its divisors is an integer number (51706980).

Almost surely, 2392972934 is an apocalyptic number.

392972934 is an abundant number, since it is smaller than the sum of its proper divisors (434338746).

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

392972934 is a wasteful number, since it uses less digits than its factorization.

392972934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447155.

The product of its digits is 734832, while the sum is 48.

The square root of 392972934 is about 19823.5449402976. The cubic root of 392972934 is about 732.4661286547.

The spelling of 392972934 in words is "three hundred ninety-two million, nine hundred seventy-two thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 114 3447131 6894262 10341393 20682786 65495489 130990978 196486467 392972934