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12683831 is a prime number
BaseRepresentation
bin110000011000…
…101000110111
3212212101221112
4300120220313
511221340311
61131505235
7212545046
oct60305067
925771845
1012683831
117183606
1242b821b
132821334
14198255d
1511a828b
hexc18a37

12683831 has 2 divisors, whose sum is σ = 12683832. Its totient is φ = 12683830.

The previous prime is 12683807. The next prime is 12683851. The reversal of 12683831 is 13838621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13838621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12683831 - 222 = 8489527 is a prime.

It is a super-2 number, since 2×126838312 = 321759137673122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12683851) 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, 6341915 + 6341916.

It is an arithmetic number, because the mean of its divisors is an integer number (6341916).

Almost surely, 212683831 is an apocalyptic number.

12683831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12683831 is an equidigital number, since it uses as much as digits as its factorization.

12683831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 12683831 is about 3561.4366483204. The cubic root of 12683831 is about 233.2116002201.

The spelling of 12683831 in words is "twelve million, six hundred eighty-three thousand, eight hundred thirty-one".