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10806931 is a prime number
BaseRepresentation
bin101001001110…
…011010010011
3202100001022201
4221032122103
510231310211
61023344031
7160600042
oct51163223
922301281
1010806931
116111453
123752017
132314c45
141614559
15e370c1
hexa4e693

10806931 has 2 divisors, whose sum is σ = 10806932. Its totient is φ = 10806930.

The previous prime is 10806911. The next prime is 10806959. The reversal of 10806931 is 13960801.

It is a happy number.

10806931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10806959) can be obtained adding 10806931 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10806931 - 211 = 10804883 is a prime.

It is a super-2 number, since 2×108069312 = 233579515277522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10806931.

It is not a weakly prime, because it can be changed into another prime (10806911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5403465 + 5403466.

It is an arithmetic number, because the mean of its divisors is an integer number (5403466).

Almost surely, 210806931 is an apocalyptic number.

10806931 is a deficient number, since it is larger than the sum of its proper divisors (1).

10806931 is an equidigital number, since it uses as much as digits as its factorization.

10806931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 10806931 is about 3287.3896939669. The cubic root of 10806931 is about 221.0891650333.

The spelling of 10806931 in words is "ten million, eight hundred six thousand, nine hundred thirty-one".