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30976936 = 2331124907
BaseRepresentation
bin111011000101…
…0101110101000
32011021210100221
41312022232220
530412230221
63023535424
7524204524
oct166125650
964253327
1030976936
1116538481
12a45a574
136557863
144184d84
152abd541
hex1d8aba8

30976936 has 16 divisors (see below), whose sum is σ = 59955840. Its totient is φ = 14988720.

The previous prime is 30976931. The next prime is 30976943. The reversal of 30976936 is 63967903.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30976892 and 30976901.

It is not an unprimeable number, because it can be changed into a prime (30976931) 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, 62206 + ... + 62701.

It is an arithmetic number, because the mean of its divisors is an integer number (3747240).

Almost surely, 230976936 is an apocalyptic number.

It is an amenable number.

30976936 is a deficient number, since it is larger than the sum of its proper divisors (28978904).

30976936 is a wasteful number, since it uses less digits than its factorization.

30976936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124944 (or 124940 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 30976936 is about 5565.6927690989. The cubic root of 30976936 is about 314.0601396702.

The spelling of 30976936 in words is "thirty million, nine hundred seventy-six thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 31 62 124 248 124907 249814 499628 999256 3872117 7744234 15488468 30976936