Base | Representation |
---|---|
bin | 10111111110100001… |
… | …10101001100110000 |
3 | 1020020002221121221012 |
4 | 23333100311030300 |
5 | 202330332140010 |
6 | 5525155050052 |
7 | 633664521020 |
oct | 137720651460 |
9 | 36202847835 |
10 | 12872536880 |
11 | 5506236535 |
12 | 25b2ba0928 |
13 | 12a1b63b38 |
14 | 8a1869a80 |
15 | 505175005 |
hex | 2ff435330 |
12872536880 has 40 divisors (see below), whose sum is σ = 34204170912. Its totient is φ = 4413441024.
The previous prime is 12872536843. The next prime is 12872536883. The reversal of 12872536880 is 8863527821.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (12872536883) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11492777 + ... + 11493896.
Almost surely, 212872536880 is an apocalyptic number.
12872536880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12872536880 is an abundant number, since it is smaller than the sum of its proper divisors (21331634032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12872536880 is a wasteful number, since it uses less digits than its factorization.
12872536880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22986693 (or 22986687 counting only the distinct ones).
The product of its (nonzero) digits is 1290240, while the sum is 50.
The spelling of 12872536880 in words is "twelve billion, eight hundred seventy-two million, five hundred thirty-six thousand, eight hundred eighty".
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