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10431131 = 22374663
BaseRepresentation
bin100111110010…
…101010011011
3201121221211012
4213302222123
510132244011
61011324135
7154443314
oct47625233
921557735
1010431131
115985077
1235b064b
132212b89
14155760b
15db0a8b
hex9f2a9b

10431131 has 4 divisors (see below), whose sum is σ = 10438032. Its totient is φ = 10424232.

The previous prime is 10431103. The next prime is 10431139. The reversal of 10431131 is 13113401.

Adding to 10431131 its reverse (13113401), we get a palindrome (23544532).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10431131 - 218 = 10168987 is a prime.

It is a super-2 number, since 2×104311312 = 217616987878322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10431139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 4568.

It is an arithmetic number, because the mean of its divisors is an integer number (2609508).

Almost surely, 210431131 is an apocalyptic number.

10431131 is a deficient number, since it is larger than the sum of its proper divisors (6901).

10431131 is an equidigital number, since it uses as much as digits as its factorization.

10431131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 10431131 is about 3229.7261493817. The cubic root of 10431131 is about 218.4961555039.

The spelling of 10431131 in words is "ten million, four hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 2237 4663 10431131