Base | Representation |
---|---|
bin | 110001100101… |
… | …101000100000 |
3 | 220110102112212 |
4 | 301211220200 |
5 | 11311433300 |
6 | 1142341252 |
7 | 215330354 |
oct | 61455040 |
9 | 26412485 |
10 | 12999200 |
11 | 7379545 |
12 | 442a828 |
13 | 2901a46 |
14 | 1a25464 |
15 | 121b935 |
hex | c65a20 |
12999200 has 36 divisors (see below), whose sum is σ = 31736250. Its totient is φ = 5199360.
The previous prime is 12999193. The next prime is 12999223. The reversal of 12999200 is 299921.
It can be written as a sum of positive squares in 3 ways, for example, as 10163344 + 2835856 = 3188^2 + 1684^2 .
It is a Harshad number since it is a multiple of its sum of digits (32).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7325 + ... + 8924.
Almost surely, 212999200 is an apocalyptic number.
12999200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12999200 is an abundant number, since it is smaller than the sum of its proper divisors (18737050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12999200 is a wasteful number, since it uses less digits than its factorization.
12999200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16269 (or 16256 counting only the distinct ones).
The product of its (nonzero) digits is 2916, while the sum is 32.
The square root of 12999200 is about 3605.4403337179. The cubic root of 12999200 is about 235.1286454225.
The spelling of 12999200 in words is "twelve million, nine hundred ninety-nine thousand, two hundred".
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