Base | Representation |
---|---|
bin | 110001011100… |
… | …011000001100 |
3 | 220101111112212 |
4 | 301130120030 |
5 | 11304230132 |
6 | 1141445552 |
7 | 215112011 |
oct | 61343014 |
9 | 26344485 |
10 | 12961292 |
11 | 7353013 |
12 | 44108b8 |
13 | 28ba706 |
14 | 1a15708 |
15 | 12105b2 |
hex | c5c60c |
12961292 has 12 divisors (see below), whose sum is σ = 22827840. Its totient is φ = 6439056.
The previous prime is 12961279. The next prime is 12961303. The reversal of 12961292 is 29216921.
It is an alternating number because its digits alternate between odd and even.
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, 9692 + ... + 10947.
It is an arithmetic number, because the mean of its divisors is an integer number (1902320).
Almost surely, 212961292 is an apocalyptic number.
It is an amenable number.
12961292 is a deficient number, since it is larger than the sum of its proper divisors (9866548).
12961292 is a wasteful number, since it uses less digits than its factorization.
12961292 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20800 (or 20798 counting only the distinct ones).
The product of its digits is 3888, while the sum is 32.
The square root of 12961292 is about 3600.1794399724. The cubic root of 12961292 is about 234.8998637802.
The spelling of 12961292 in words is "twelve million, nine hundred sixty-one thousand, two hundred ninety-two".
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