Base | Representation |
---|---|
bin | 11100100011101110… |
… | …100111101111010111 |
3 | 2221011001002111200002 |
4 | 130203232213233113 |
5 | 1000300013220111 |
6 | 22030440041515 |
7 | 2133613233341 |
oct | 344356475727 |
9 | 87131074602 |
10 | 30664195031 |
11 | 12006158648 |
12 | 5b3946329b |
13 | 2b78b79202 |
14 | 16ac742291 |
15 | be70c763b |
hex | 723ba7bd7 |
30664195031 has 2 divisors, whose sum is σ = 30664195032. Its totient is φ = 30664195030.
The previous prime is 30664194983. The next prime is 30664195063. The reversal of 30664195031 is 13059146603.
It is a strong prime.
It is an emirp because it is prime and its reverse (13059146603) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30664195031 - 210 = 30664194007 is a prime.
It is a super-2 number, since 2×306641950312 (a number of 22 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30664195231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332097515 + 15332097516.
It is an arithmetic number, because the mean of its divisors is an integer number (15332097516).
Almost surely, 230664195031 is an apocalyptic number.
30664195031 is a deficient number, since it is larger than the sum of its proper divisors (1).
30664195031 is an equidigital number, since it uses as much as digits as its factorization.
30664195031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 58320, while the sum is 38.
The spelling of 30664195031 in words is "thirty billion, six hundred sixty-four million, one hundred ninety-five thousand, thirty-one".
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