Base | Representation |
---|---|
bin | 110001000011… |
… | …110101110001 |
3 | 220012101200101 |
4 | 301003311301 |
5 | 11243021120 |
6 | 1135352401 |
7 | 214213000 |
oct | 61036561 |
9 | 26171611 |
10 | 12860785 |
11 | 7294553 |
12 | 4382701 |
13 | 2883a42 |
14 | 19cac37 |
15 | 11e090a |
hex | c43d71 |
12860785 has 16 divisors (see below), whose sum is σ = 18000000. Its totient is φ = 8817648.
The previous prime is 12860759. The next prime is 12860791. The reversal of 12860785 is 58706821.
12860785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12860785 - 29 = 12860273 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035 + ... + 5464.
It is an arithmetic number, because the mean of its divisors is an integer number (1125000).
Almost surely, 212860785 is an apocalyptic number.
It is an amenable number.
12860785 is a deficient number, since it is larger than the sum of its proper divisors (5139215).
12860785 is an frugal number, since it uses more digits than its factorization.
12860785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7525 (or 7511 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 37.
The square root of 12860785 is about 3586.1936645976. The cubic root of 12860785 is about 234.2911186645.
The spelling of 12860785 in words is "twelve million, eight hundred sixty thousand, seven hundred eighty-five".
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