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12502643 is a prime number
BaseRepresentation
bin101111101100…
…011001110011
3212112012101212
4233230121303
511200041033
61123550335
7211161566
oct57543163
925465355
1012502643
11706a46a
12422b3ab
132789a1a
1419364dd
15116e748
hexbec673

12502643 has 2 divisors, whose sum is σ = 12502644. Its totient is φ = 12502642.

The previous prime is 12502597. The next prime is 12502661. The reversal of 12502643 is 34620521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12502643 - 220 = 11454067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12502543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251321 + 6251322.

It is an arithmetic number, because the mean of its divisors is an integer number (6251322).

Almost surely, 212502643 is an apocalyptic number.

12502643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12502643 is an equidigital number, since it uses as much as digits as its factorization.

12502643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12502643 is about 3535.9076628215. The cubic root of 12502643 is about 232.0957974870.

The spelling of 12502643 in words is "twelve million, five hundred two thousand, six hundred forty-three".