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392112008 = 2370012
BaseRepresentation
bin10111010111110…
…010011110001000
31000022211100112222
4113113302132020
51300340041013
6102524153212
712500616461
oct2727623610
91008740488
10392112008
11191378612
12ab398808
136330c152
143a10dd68
1524656508
hex175f2788

392112008 has 12 divisors (see below), whose sum is σ = 735315045. Its totient is φ = 196028000.

The previous prime is 392112001. The next prime is 392112013. The reversal of 392112008 is 800211293.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 389746564 + 2365444 = 19742^2 + 1538^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=14002.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392112001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52508 + ... + 59508.

Almost surely, 2392112008 is an apocalyptic number.

It is an amenable number.

392112008 is a deficient number, since it is larger than the sum of its proper divisors (343203037).

392112008 is an frugal number, since it uses more digits than its factorization.

392112008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14008 (or 7003 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 392112008 is about 19801.8183003481. The cubic root of 392112008 is about 731.9308414063.

The spelling of 392112008 in words is "three hundred ninety-two million, one hundred twelve thousand, eight".

Divisors: 1 2 4 8 7001 14002 28004 56008 49014001 98028002 196056004 392112008