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30137692 = 2213579571
BaseRepresentation
bin111001011110…
…1110101011100
32002201011010211
41302331311130
530203401232
62553542204
7514110664
oct162756534
962634124
1030137692
1116014992
12a114964
136322870
1440071a4
1529a4a47
hex1cbdd5c

30137692 has 12 divisors (see below), whose sum is σ = 56798056. Its totient is φ = 13909680.

The previous prime is 30137663. The next prime is 30137759. The reversal of 30137692 is 29673103.

It is a congruent number.

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, 289734 + ... + 289837.

Almost surely, 230137692 is an apocalyptic number.

It is an amenable number.

30137692 is a deficient number, since it is larger than the sum of its proper divisors (26660364).

30137692 is a wasteful number, since it uses less digits than its factorization.

30137692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579588 (or 579586 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 30137692 is about 5489.7806877871. The cubic root of 30137692 is about 311.1979041102.

The spelling of 30137692 in words is "thirty million, one hundred thirty-seven thousand, six hundred ninety-two".

Divisors: 1 2 4 13 26 52 579571 1159142 2318284 7534423 15068846 30137692