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10869931 is a prime number
BaseRepresentation
bin101001011101…
…110010101011
3202110020202001
4221131302223
510240314211
61024551431
7161251522
oct51356253
922406661
1010869931
116154816
123782577
132337817
14162d4b9
15e4aac1
hexa5dcab

10869931 has 2 divisors, whose sum is σ = 10869932. Its totient is φ = 10869930.

The previous prime is 10869913. The next prime is 10869941. The reversal of 10869931 is 13996801.

Together with previous prime (10869913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10869931 - 217 = 10738859 is a prime.

It is a super-2 number, since 2×108699312 = 236310799889522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10869941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5434965 + 5434966.

It is an arithmetic number, because the mean of its divisors is an integer number (5434966).

Almost surely, 210869931 is an apocalyptic number.

10869931 is a deficient number, since it is larger than the sum of its proper divisors (1).

10869931 is an equidigital number, since it uses as much as digits as its factorization.

10869931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 10869931 is about 3296.9578401915. The cubic root of 10869931 is about 221.5179527765.

The spelling of 10869931 in words is "ten million, eight hundred sixty-nine thousand, nine hundred thirty-one".