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311297927929 is a prime number
BaseRepresentation
bin1001000011110101100…
…11010110101011111001
31002202111212222020021021
410201322303112223321
520100014232143204
6355001442542441
731330152504622
oct4417263265371
91082455866237
10311297927929
1111002562381a
12503b9067a21
13234806a9b71
14110d1806a49
15816e49d154
hex487acd6af9

311297927929 has 2 divisors, whose sum is σ = 311297927930. Its totient is φ = 311297927928.

The previous prime is 311297927917. The next prime is 311297927939. The reversal of 311297927929 is 929729792113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287934194025 + 23363733904 = 536595^2 + 152852^2 .

It is a cyclic number.

It is not a de Polignac number, because 311297927929 - 217 = 311297796857 is a prime.

It is not a weakly prime, because it can be changed into another prime (311297927939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155648963964 + 155648963965.

It is an arithmetic number, because the mean of its divisors is an integer number (155648963965).

Almost surely, 2311297927929 is an apocalyptic number.

It is an amenable number.

311297927929 is a deficient number, since it is larger than the sum of its proper divisors (1).

311297927929 is an equidigital number, since it uses as much as digits as its factorization.

311297927929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7715736, while the sum is 61.

The spelling of 311297927929 in words is "three hundred eleven billion, two hundred ninety-seven million, nine hundred twenty-seven thousand, nine hundred twenty-nine".