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12310979 is a prime number
BaseRepresentation
bin101110111101…
…100111000011
3212011110111012
4232331213003
511122422404
61115511135
7206433032
oct56754703
925143435
1012310979
116a4946a
1241584ab
132720705
1418c6719
151132a6e
hexbbd9c3

12310979 has 2 divisors, whose sum is σ = 12310980. Its totient is φ = 12310978.

The previous prime is 12310967. The next prime is 12310997. The reversal of 12310979 is 97901321.

It is a happy number.

Together with next prime (12310997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12310979 - 212 = 12306883 is a prime.

It is a super-3 number, since 3×123109793 (a number of 22 digits) contains 333 as substring.

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 (12310079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155489 + 6155490.

It is an arithmetic number, because the mean of its divisors is an integer number (6155490).

Almost surely, 212310979 is an apocalyptic number.

12310979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310979 is an equidigital number, since it uses as much as digits as its factorization.

12310979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12310979 is about 3508.7004716846. The cubic root of 12310979 is about 230.9036847897.

The spelling of 12310979 in words is "twelve million, three hundred ten thousand, nine hundred seventy-nine".