Base | Representation |
---|---|
bin | 10111101010000010… |
… | …10010000110110010 |
3 | 1012210010120211201011 |
4 | 23311001102012302 |
5 | 202002334020233 |
6 | 5500135501134 |
7 | 626510034166 |
oct | 136501220662 |
9 | 35703524634 |
10 | 12700688818 |
11 | 5428231544 |
12 | 25655277aa |
13 | 12753855ac |
14 | 886ad4ca6 |
15 | 4e502c0cd |
hex | 2f50521b2 |
12700688818 has 32 divisors (see below), whose sum is σ = 19752989760. Its totient is φ = 6120576000.
The previous prime is 12700688807. The next prime is 12700688821. The reversal of 12700688818 is 81888600721.
It is a super-2 number, since 2×127006888182 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402338 + ... + 2407618.
It is an arithmetic number, because the mean of its divisors is an integer number (617280930).
Almost surely, 212700688818 is an apocalyptic number.
12700688818 is a deficient number, since it is larger than the sum of its proper divisors (7052300942).
12700688818 is a wasteful number, since it uses less digits than its factorization.
12700688818 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5674.
The product of its (nonzero) digits is 344064, while the sum is 49.
The spelling of 12700688818 in words is "twelve billion, seven hundred million, six hundred eighty-eight thousand, eight hundred eighteen".
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