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30630908 = 2271129041
BaseRepresentation
bin111010011011…
…0001111111100
32010122012201002
41310312033330
530320142113
63012305432
7521233640
oct164661774
963565632
1030630908
1116321500
12a312278
1364661c9
1440d4c20
152a50c58
hex1d363fc

30630908 has 36 divisors (see below), whose sum is σ = 67344816. Its totient is φ = 11932800.

The previous prime is 30630893. The next prime is 30630911. The reversal of 30630908 is 80903603.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1133 + ... + 7908.

Almost surely, 230630908 is an apocalyptic number.

It is an amenable number.

30630908 is an abundant number, since it is smaller than the sum of its proper divisors (36713908).

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

30630908 is a wasteful number, since it uses less digits than its factorization.

30630908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074 (or 9061 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30630908 is about 5534.5196720221. The cubic root of 30630908 is about 312.8863547791.

The spelling of 30630908 in words is "thirty million, six hundred thirty thousand, nine hundred eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 9041 18082 36164 63287 99451 126574 198902 253148 397804 696157 1093961 1392314 2187922 2784628 4375844 7657727 15315454 30630908