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30942892 = 229977759
BaseRepresentation
bin111011000001…
…0011010101100
32011020001200001
41312002122230
530410133032
63023114044
7524003341
oct166023254
964201601
1030942892
1116514942
12a442924
136545206
1441767c8
152ab33e7
hex1d826ac

30942892 has 12 divisors (see below), whose sum is σ = 54211360. Its totient is φ = 15453936.

The previous prime is 30942883. The next prime is 30942893. The reversal of 30942892 is 29824903.

It is not an unprimeable number, because it can be changed into a prime (30942893) 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, 109 + ... + 7867.

Almost surely, 230942892 is an apocalyptic number.

It is an amenable number.

30942892 is a deficient number, since it is larger than the sum of its proper divisors (23268468).

30942892 is a wasteful number, since it uses less digits than its factorization.

30942892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8760 (or 8758 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30942892 is about 5562.6335489586. The cubic root of 30942892 is about 313.9450456250.

The spelling of 30942892 in words is "thirty million, nine hundred forty-two thousand, eight hundred ninety-two".

Divisors: 1 2 4 997 1994 3988 7759 15518 31036 7735723 15471446 30942892