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390615112 = 23121340253
BaseRepresentation
bin10111010010000…
…101000001001000
31000020000022012101
4113102011001020
51244444140422
6102432123144
712452113366
oct2722050110
91006008171
10390615112
11190545a08
12aa9964b4
1362c06a04
1439c40636
152445cc27
hex17485048

390615112 has 16 divisors (see below), whose sum is σ = 733025340. Its totient is φ = 195141696.

The previous prime is 390615107. The next prime is 390615131. The reversal of 390615112 is 211516093.

It can be written as a sum of positive squares in 2 ways, for example, as 387538596 + 3076516 = 19686^2 + 1754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10423 + ... + 29830.

Almost surely, 2390615112 is an apocalyptic number.

It is an amenable number.

390615112 is a deficient number, since it is larger than the sum of its proper divisors (342410228).

390615112 is a wasteful number, since it uses less digits than its factorization.

390615112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41472 (or 41468 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 390615112 is about 19763.9852256573. The cubic root of 390615112 is about 730.9982664612.

The spelling of 390615112 in words is "three hundred ninety million, six hundred fifteen thousand, one hundred twelve".

Divisors: 1 2 4 8 1213 2426 4852 9704 40253 80506 161012 322024 48826889 97653778 195307556 390615112