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12382631 is a prime number
BaseRepresentation
bin101111001111…
…000110100111
3212022002202222
4233033012213
511132221011
61121222555
7210151652
oct57170647
925262688
1012382631
116a98288
124191a5b
132747201
141904899
151148ddb
hexbcf1a7

12382631 has 2 divisors, whose sum is σ = 12382632. Its totient is φ = 12382630.

The previous prime is 12382589. The next prime is 12382633. The reversal of 12382631 is 13628321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12382631 - 26 = 12382567 is a prime.

It is a super-2 number, since 2×123826312 = 306659100964322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 12382633, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p811547 and since 12382631 and 811547 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12382631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12382633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6191315 + 6191316.

It is an arithmetic number, because the mean of its divisors is an integer number (6191316).

Almost surely, 212382631 is an apocalyptic number.

12382631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12382631 is an equidigital number, since it uses as much as digits as its factorization.

12382631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 12382631 is about 3518.8962758229. The cubic root of 12382631 is about 231.3507848004.

The spelling of 12382631 in words is "twelve million, three hundred eighty-two thousand, six hundred thirty-one".