Base | Representation |
---|---|
bin | 10111011111101001… |
… | …11101111000100100 |
3 | 1012120001122221220002 |
4 | 23233310331320210 |
5 | 201313033333210 |
6 | 5443344400432 |
7 | 624401416514 |
oct | 135764757044 |
9 | 35501587802 |
10 | 12613574180 |
11 | 5393040a79 |
12 | 2540316118 |
13 | 1260303a7c |
14 | 8792d9844 |
15 | 4dc5704a5 |
hex | 2efd3de24 |
12613574180 has 12 divisors (see below), whose sum is σ = 26488505820. Its totient is φ = 5045429664.
The previous prime is 12613574161. The next prime is 12613574219. The reversal of 12613574180 is 8147531621.
It can be written as a sum of positive squares in 2 ways, for example, as 7832958016 + 4780616164 = 88504^2 + 69142^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315339335 + ... + 315339374.
It is an arithmetic number, because the mean of its divisors is an integer number (2207375485).
Almost surely, 212613574180 is an apocalyptic number.
12613574180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12613574180 is an abundant number, since it is smaller than the sum of its proper divisors (13874931640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12613574180 is a wasteful number, since it uses less digits than its factorization.
12613574180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 630678718 (or 630678716 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 38.
The spelling of 12613574180 in words is "twelve billion, six hundred thirteen million, five hundred seventy-four thousand, one hundred eighty".
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