Base | Representation |
---|---|
bin | 11000001111010000… |
… | …00111010001000100 |
3 | 1020120212222200012220 |
4 | 30013220013101010 |
5 | 203122242423144 |
6 | 5551130412340 |
7 | 640320316203 |
oct | 140750072104 |
9 | 36525880186 |
10 | 13012857924 |
11 | 5578467840 |
12 | 2631b910b0 |
13 | 12c4c54341 |
14 | 8b635523a |
15 | 512641919 |
hex | 307a07444 |
13012857924 has 48 divisors (see below), whose sum is σ = 33130460160. Its totient is φ = 3942478240.
The previous prime is 13012857911. The next prime is 13012858007. The reversal of 13012857924 is 42975821031.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055017 + ... + 1067279.
It is an arithmetic number, because the mean of its divisors is an integer number (690217920).
Almost surely, 213012857924 is an apocalyptic number.
It is an amenable number.
13012857924 is an abundant number, since it is smaller than the sum of its proper divisors (20117602236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13012857924 is a wasteful number, since it uses less digits than its factorization.
13012857924 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20320 (or 20318 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 42.
The spelling of 13012857924 in words is "thirteen billion, twelve million, eight hundred fifty-seven thousand, nine hundred twenty-four".
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