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12502943 is a prime number
BaseRepresentation
bin101111101100…
…011110011111
3212112012210222
4233230132133
511200043233
61123551555
7211162505
oct57543637
925465728
1012502943
11706a712
12422b5bb
132789bbb
141936675
15116e898
hexbec79f

12502943 has 2 divisors, whose sum is σ = 12502944. Its totient is φ = 12502942.

The previous prime is 12502921. The next prime is 12502957. The reversal of 12502943 is 34920521.

It is a strong prime.

It is an emirp because it is prime and its reverse (34920521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12502943 - 28 = 12502687 is a prime.

It is a super-2 number, since 2×125029432 = 312647167322498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12502993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251471 + 6251472.

It is an arithmetic number, because the mean of its divisors is an integer number (6251472).

Almost surely, 212502943 is an apocalyptic number.

12502943 is a deficient number, since it is larger than the sum of its proper divisors (1).

12502943 is an equidigital number, since it uses as much as digits as its factorization.

12502943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 12502943 is about 3535.9500844893. The cubic root of 12502943 is about 232.0976538460.

The spelling of 12502943 in words is "twelve million, five hundred two thousand, nine hundred forty-three".