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30904612 = 2223932327
BaseRepresentation
bin111010111100…
…1000100100100
32011011010011021
41311321010210
530402421422
63022220524
7523453624
oct165710444
964133137
1030904612
1116499102
12a424744
13653096b
144166884
152aa6dc7
hex1d79124

30904612 has 12 divisors (see below), whose sum is σ = 54311040. Its totient is φ = 15387176.

The previous prime is 30904607. The next prime is 30904619. The reversal of 30904612 is 21640903.

It is not an unprimeable number, because it can be changed into a prime (30904619) 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, 15208 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (4525920).

Almost surely, 230904612 is an apocalyptic number.

It is an amenable number.

30904612 is a deficient number, since it is larger than the sum of its proper divisors (23406428).

30904612 is a wasteful number, since it uses less digits than its factorization.

30904612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32570 (or 32568 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 30904612 is about 5559.1916678596. The cubic root of 30904612 is about 313.8155298753.

The spelling of 30904612 in words is "thirty million, nine hundred four thousand, six hundred twelve".

Divisors: 1 2 4 239 478 956 32327 64654 129308 7726153 15452306 30904612