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82968931 is a prime number
BaseRepresentation
bin1001111001000…
…00000101100011
312210010020222101
410330200011203
5132220001211
612122151231
72025136633
oct474400543
9183106871
1082968931
1142919871
1223952517
131425c856
14b03a6c3
15743d5c1
hex4f20163

82968931 has 2 divisors, whose sum is σ = 82968932. Its totient is φ = 82968930.

The previous prime is 82968923. The next prime is 82968943. The reversal of 82968931 is 13986928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82968931 - 23 = 82968923 is a prime.

It is a super-2 number, since 2×829689312 = 13767687022565522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82968901) by changing a digit.

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 as a sum of consecutive naturals, namely, 41484465 + 41484466.

It is an arithmetic number, because the mean of its divisors is an integer number (41484466).

Almost surely, 282968931 is an apocalyptic number.

82968931 is a deficient number, since it is larger than the sum of its proper divisors (1).

82968931 is an equidigital number, since it uses as much as digits as its factorization.

82968931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 82968931 is about 9108.7282866490. The cubic root of 82968931 is about 436.1526325722.

The spelling of 82968931 in words is "eighty-two million, nine hundred sixty-eight thousand, nine hundred thirty-one".