Base | Representation |
---|---|
bin | 11100100010101111… |
… | …100001001010100111 |
3 | 2221002212222002022102 |
4 | 130202233201022213 |
5 | 1000231244344111 |
6 | 22025045322315 |
7 | 2133322516052 |
oct | 344257411247 |
9 | 87085862272 |
10 | 30647653031 |
11 | 11aa788a376 |
12 | 5b33a0639b |
13 | 2b75606a48 |
14 | 16aa477a99 |
15 | be590b13b |
hex | 722be12a7 |
30647653031 has 16 divisors (see below), whose sum is σ = 31470286848. Its totient is φ = 29830248000.
The previous prime is 30647652961. The next prime is 30647653063. The reversal of 30647653031 is 13035674603.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 30647653031 - 230 = 29573911207 is a prime.
It is a super-2 number, since 2×306476530312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30647653831) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28090796 + ... + 28091886.
It is an arithmetic number, because the mean of its divisors is an integer number (1966892928).
Almost surely, 230647653031 is an apocalyptic number.
30647653031 is a deficient number, since it is larger than the sum of its proper divisors (822633817).
30647653031 is a wasteful number, since it uses less digits than its factorization.
30647653031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2822.
The product of its (nonzero) digits is 136080, while the sum is 38.
The spelling of 30647653031 in words is "thirty billion, six hundred forty-seven million, six hundred fifty-three thousand, thirty-one".
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