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392102868 = 22332675239
BaseRepresentation
bin10111010111110…
…000001111010100
31000022210220000110
4113113300033110
51300334242433
6102524043020
712500551023
oct2727601724
91008726013
10392102868
11191371763
12ab393470
1363307c41
143a10a8ba
1524653963
hex175f03d4

392102868 has 12 divisors (see below), whose sum is σ = 914906720. Its totient is φ = 130700952.

The previous prime is 392102861. The next prime is 392102899. The reversal of 392102868 is 868201293.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392102861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16337608 + ... + 16337631.

Almost surely, 2392102868 is an apocalyptic number.

It is an amenable number.

392102868 is an abundant number, since it is smaller than the sum of its proper divisors (522803852).

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

392102868 is a wasteful number, since it uses less digits than its factorization.

392102868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32675246 (or 32675244 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 392102868 is about 19801.5875121163. The cubic root of 392102868 is about 731.9251543409.

The spelling of 392102868 in words is "three hundred ninety-two million, one hundred two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 32675239 65350478 98025717 130700956 196051434 392102868