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30610992 = 243637729
BaseRepresentation
bin111010011000…
…1011000110000
32010121012101110
41310301120300
530314022432
63012033320
7521121606
oct164613060
963535343
1030610992
1116308545
12a302840
13645a119
1440cb876
152a49dcc
hex1d31630

30610992 has 20 divisors (see below), whose sum is σ = 79078520. Its totient is φ = 10203648.

The previous prime is 30610973. The next prime is 30611003. The reversal of 30610992 is 29901603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318817 + ... + 318912.

It is an arithmetic number, because the mean of its divisors is an integer number (3953926).

Almost surely, 230610992 is an apocalyptic number.

It is an amenable number.

30610992 is an abundant number, since it is smaller than the sum of its proper divisors (48467528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30610992 is a wasteful number, since it uses less digits than its factorization.

30610992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637740 (or 637734 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 30610992 is about 5532.7201266646. The cubic root of 30610992 is about 312.8185279109.

The spelling of 30610992 in words is "thirty million, six hundred ten thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 637729 1275458 1913187 2550916 3826374 5101832 7652748 10203664 15305496 30610992