Base | Representation |
---|---|
bin | 10111000100110111… |
… | …00010000011001000 |
3 | 1011222101201101110200 |
4 | 23202123202003020 |
5 | 200333013142020 |
6 | 5405155012200 |
7 | 616002041325 |
oct | 134233420310 |
9 | 34871641420 |
10 | 12388802760 |
11 | 5288179974 |
12 | 2498b9a060 |
13 | 1225885629 |
14 | 857509b4c |
15 | 4c7971590 |
hex | 2e26e20c8 |
12388802760 has 48 divisors (see below), whose sum is σ = 40263610140. Its totient is φ = 3303680640.
The previous prime is 12388802753. The next prime is 12388802779. The reversal of 12388802760 is 6720888321.
It can be written as a sum of positive squares in 2 ways, for example, as 12189484836 + 199317924 = 110406^2 + 14118^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17206311 + ... + 17207030.
Almost surely, 212388802760 is an apocalyptic number.
12388802760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12388802760 is an abundant number, since it is smaller than the sum of its proper divisors (27874807380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12388802760 is a wasteful number, since it uses less digits than its factorization.
12388802760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34413358 (or 34413351 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The spelling of 12388802760 in words is "twelve billion, three hundred eighty-eight million, eight hundred two thousand, seven hundred sixty".
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