Base | Representation |
---|---|
bin | 10111110111011101… |
… | …11011111110010000 |
3 | 1020001222112002202101 |
4 | 23323232323332100 |
5 | 202220202220310 |
6 | 5515241530144 |
7 | 632345265211 |
oct | 137356737620 |
9 | 36058462671 |
10 | 12813320080 |
11 | 5485870030 |
12 | 25971a3954 |
13 | 12927cc502 |
14 | 897a53408 |
15 | 4eed7943a |
hex | 2fbbbbf90 |
12813320080 has 80 divisors (see below), whose sum is σ = 32516668800. Its totient is φ = 4656890880.
The previous prime is 12813320063. The next prime is 12813320119. The reversal of 12813320080 is 8002331821.
It is a tau number, because it is divible by the number of its divisors (80).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2707156 + ... + 2711884.
It is an arithmetic number, because the mean of its divisors is an integer number (406458360).
Almost surely, 212813320080 is an apocalyptic number.
12813320080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12813320080 is an abundant number, since it is smaller than the sum of its proper divisors (19703348720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12813320080 is a wasteful number, since it uses less digits than its factorization.
12813320080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7832 (or 7826 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 28.
The spelling of 12813320080 in words is "twelve billion, eight hundred thirteen million, three hundred twenty thousand, eighty".
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