Base | Representation |
---|---|
bin | 110001010000… |
… | …100110111000 |
3 | 220022001102020 |
4 | 301100212320 |
5 | 11301204310 |
6 | 1140434440 |
7 | 214521315 |
oct | 61204670 |
9 | 26261366 |
10 | 12913080 |
11 | 731a874 |
12 | 43a8a20 |
13 | 28a179b |
14 | 1a01d0c |
15 | 1201170 |
hex | c509b8 |
12913080 has 32 divisors (see below), whose sum is σ = 38739600. Its totient is φ = 3443456.
The previous prime is 12913039. The next prime is 12913123. The reversal of 12913080 is 8031921.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 12913080.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53685 + ... + 53924.
Almost surely, 212913080 is an apocalyptic number.
12913080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12913080 is an abundant number, since it is smaller than the sum of its proper divisors (25826520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12913080 is a wasteful number, since it uses less digits than its factorization.
12913080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107623 (or 107619 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 24.
The square root of 12913080 is about 3593.4774244456. The cubic root of 12913080 is about 234.6082502809.
It can be divided in two parts, 1291 and 3080, that added together give a triangular number (4371 = T93).
The spelling of 12913080 in words is "twelve million, nine hundred thirteen thousand, eighty".
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