Search a number
-
+
311297927917 is a prime number
BaseRepresentation
bin1001000011110101100…
…11010110101011101101
31002202111212222020020211
410201322303112223231
520100014232143132
6355001442542421
731330152504604
oct4417263265355
91082455866224
10311297927917
11110025623809
12503b9067a11
13234806a9b62
14110d1806a3b
15816e49d147
hex487acd6aed

311297927917 has 2 divisors, whose sum is σ = 311297927918. Its totient is φ = 311297927916.

The previous prime is 311297927893. The next prime is 311297927929. The reversal of 311297927917 is 719729792113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275429734596 + 35868193321 = 524814^2 + 189389^2 .

It is a cyclic number.

It is not a de Polignac number, because 311297927917 - 227 = 311163710189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311297921917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155648963958 + 155648963959.

It is an arithmetic number, because the mean of its divisors is an integer number (155648963959).

Almost surely, 2311297927917 is an apocalyptic number.

It is an amenable number.

311297927917 is a deficient number, since it is larger than the sum of its proper divisors (1).

311297927917 is an equidigital number, since it uses as much as digits as its factorization.

311297927917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000564, while the sum is 58.

The spelling of 311297927917 in words is "three hundred eleven billion, two hundred ninety-seven million, nine hundred twenty-seven thousand, nine hundred seventeen".