Base | Representation |
---|---|
bin | 10111110101111111… |
… | …00100011011010000 |
3 | 1020001010011020112111 |
4 | 23322333210123100 |
5 | 202204012342424 |
6 | 5514115435104 |
7 | 632134610341 |
oct | 137277443320 |
9 | 36033136474 |
10 | 12800902864 |
11 | 5479859872 |
12 | 2592bb5a94 |
13 | 1290072649 |
14 | 8961400c8 |
15 | 4edc25194 |
hex | 2fafe46d0 |
12800902864 has 40 divisors (see below), whose sum is σ = 24913558208. Its totient is φ = 6371654400.
The previous prime is 12800902861. The next prime is 12800902901. The reversal of 12800902864 is 46820900821.
It is a super-2 number, since 2×128009028642 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12800902861) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7106764 + ... + 7108564.
Almost surely, 212800902864 is an apocalyptic number.
It is an amenable number.
12800902864 is a deficient number, since it is larger than the sum of its proper divisors (12112655344).
12800902864 is a wasteful number, since it uses less digits than its factorization.
12800902864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3563 (or 3557 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 40.
The spelling of 12800902864 in words is "twelve billion, eight hundred million, nine hundred two thousand, eight hundred sixty-four".
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