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30966442 = 21310711131
BaseRepresentation
bin111011000100…
…0001010101010
32011021020222021
41312020022222
530411411232
63023415054
7524132113
oct166101252
964236867
1030966442
1116530601
12a45448a
136552b50
14418120a
152aba397
hex1d882aa

30966442 has 16 divisors (see below), whose sum is σ = 50494752. Its totient is φ = 14157360.

The previous prime is 30966433. The next prime is 30966451. The reversal of 30966442 is 24466903.

It is an interprime number because it is at equal distance from previous prime (30966433) and next prime (30966451).

It is a junction number, because it is equal to n+sod(n) for n = 30966398 and 30966407.

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 7 ways as a sum of consecutive naturals, for example, 2784 + ... + 8347.

It is an arithmetic number, because the mean of its divisors is an integer number (3155922).

Almost surely, 230966442 is an apocalyptic number.

30966442 is a deficient number, since it is larger than the sum of its proper divisors (19528310).

30966442 is a wasteful number, since it uses less digits than its factorization.

30966442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11253.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 30966442 is about 5564.7499494586. The cubic root of 30966442 is about 314.0246711382.

The spelling of 30966442 in words is "thirty million, nine hundred sixty-six thousand, four hundred forty-two".

Divisors: 1 2 13 26 107 214 1391 2782 11131 22262 144703 289406 1191017 2382034 15483221 30966442