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30968792 = 2318712069
BaseRepresentation
bin111011000100…
…0101111011000
32011021101012022
41312020233120
530412000132
63023434012
7524142011
oct166105730
964241168
1030968792
1116532348
12a455908
136553c3a
144182008
152abae12
hex1d88bd8

30968792 has 16 divisors (see below), whose sum is σ = 58125600. Its totient is φ = 15468640.

The previous prime is 30968771. The next prime is 30968797. The reversal of 30968792 is 29786903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30968797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13934 + ... + 16002.

It is an arithmetic number, because the mean of its divisors is an integer number (3632850).

Almost surely, 230968792 is an apocalyptic number.

It is an amenable number.

30968792 is a deficient number, since it is larger than the sum of its proper divisors (27156808).

30968792 is a wasteful number, since it uses less digits than its factorization.

30968792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 30968792 is about 5564.9610960006. The cubic root of 30968792 is about 314.0326145684.

The spelling of 30968792 in words is "thirty million, nine hundred sixty-eight thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 1871 2069 3742 4138 7484 8276 14968 16552 3871099 7742198 15484396 30968792