Search a number
BaseRepresentation
bin11100001110001101…
…010001011010100001
32220012212200120100012
4130032031101122201
5444030100200142
621530541134305
72121640236365
oct341615213241
986185616305
1030303131297
111194036706a
125a5855a395
132b1c11b22a
1416767d52a5
15bc5555882
hex70e3516a1

30303131297 has 2 divisors, whose sum is σ = 30303131298. Its totient is φ = 30303131296.

The previous prime is 30303131273. The next prime is 30303131323. The reversal of 30303131297 is 79213130303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19825766416 + 10477364881 = 140804^2 + 102359^2 .

It is a cyclic number.

It is not a de Polignac number, because 30303131297 - 26 = 30303131233 is a prime.

It is not a weakly prime, because it can be changed into another prime (30303131267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15151565648 + 15151565649.

It is an arithmetic number, because the mean of its divisors is an integer number (15151565649).

Almost surely, 230303131297 is an apocalyptic number.

It is an amenable number.

30303131297 is a deficient number, since it is larger than the sum of its proper divisors (1).

30303131297 is an equidigital number, since it uses as much as digits as its factorization.

30303131297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 32.

The spelling of 30303131297 in words is "thirty billion, three hundred three million, one hundred thirty-one thousand, two hundred ninety-seven".