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30933512 = 234389923
BaseRepresentation
bin111011000000…
…0001000001000
32011012120210122
41312000020020
530404333022
63023002412
7523634111
oct166001010
964176718
1030933512
1116508895
12a439408
136540b6c
144173208
152ab0742
hex1d80208

30933512 has 16 divisors (see below), whose sum is σ = 59349840. Its totient is φ = 15106896.

The previous prime is 30933499. The next prime is 30933521. The reversal of 30933512 is 21533903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44618 + ... + 45305.

It is an arithmetic number, because the mean of its divisors is an integer number (3709365).

Almost surely, 230933512 is an apocalyptic number.

It is an amenable number.

30933512 is a deficient number, since it is larger than the sum of its proper divisors (28416328).

30933512 is a wasteful number, since it uses less digits than its factorization.

30933512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89972 (or 89968 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 30933512 is about 5561.7903592279. The cubic root of 30933512 is about 313.9133194143.

The spelling of 30933512 in words is "thirty million, nine hundred thirty-three thousand, five hundred twelve".

Divisors: 1 2 4 8 43 86 172 344 89923 179846 359692 719384 3866689 7733378 15466756 30933512