Base | Representation |
---|---|
bin | 110001000011… |
… | …110101101100 |
3 | 220012101200012 |
4 | 301003311230 |
5 | 11243021110 |
6 | 1135352352 |
7 | 214212662 |
oct | 61036554 |
9 | 26171605 |
10 | 12860780 |
11 | 7294549 |
12 | 43826b8 |
13 | 2883a3a |
14 | 19cac32 |
15 | 11e0905 |
hex | c43d6c |
12860780 has 12 divisors (see below), whose sum is σ = 27007680. Its totient is φ = 5144304.
The previous prime is 12860759. The next prime is 12860791. The reversal of 12860780 is 8706821.
12860780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.
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, 321500 + ... + 321539.
It is an arithmetic number, because the mean of its divisors is an integer number (2250640).
Almost surely, 212860780 is an apocalyptic number.
12860780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12860780 is an abundant number, since it is smaller than the sum of its proper divisors (14146900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12860780 is a wasteful number, since it uses less digits than its factorization.
12860780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 643048 (or 643046 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 32.
The square root of 12860780 is about 3586.1929674796. The cubic root of 12860780 is about 234.2910883020.
The spelling of 12860780 in words is "twelve million, eight hundred sixty thousand, seven hundred eighty".
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