Base | Representation |
---|---|
bin | 10111111111000000… |
… | …11101101101011000 |
3 | 1020020101122211110020 |
4 | 23333200131231120 |
5 | 202332404304333 |
6 | 5525422550440 |
7 | 634044406551 |
oct | 137740355530 |
9 | 36211584406 |
10 | 12876634968 |
11 | 550858548a |
12 | 25b4438420 |
13 | 12a296a242 |
14 | 8a2215328 |
15 | 5056d43b3 |
hex | 2ff81db58 |
12876634968 has 32 divisors (see below), whose sum is σ = 32377676400. Its totient is φ = 4267399808.
The previous prime is 12876634949. The next prime is 12876634987. The reversal of 12876634968 is 86943667821.
It is an interprime number because it is at equal distance from previous prime (12876634949) and next prime (12876634987).
It is a super-2 number, since 2×128766349682 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546503 + ... + 1554806.
Almost surely, 212876634968 is an apocalyptic number.
It is an amenable number.
12876634968 is an abundant number, since it is smaller than the sum of its proper divisors (19501041432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12876634968 is a wasteful number, since it uses less digits than its factorization.
12876634968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3101491 (or 3101487 counting only the distinct ones).
The product of its digits is 20901888, while the sum is 60.
The spelling of 12876634968 in words is "twelve billion, eight hundred seventy-six million, six hundred thirty-four thousand, nine hundred sixty-eight".
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