Base | Representation |
---|---|
bin | 110001001000… |
… | …110000111001 |
3 | 220020102100100 |
4 | 301020300321 |
5 | 11244142303 |
6 | 1140030013 |
7 | 214325541 |
oct | 61106071 |
9 | 26212310 |
10 | 12880953 |
11 | 72a8718 |
12 | 4392309 |
13 | 288cc87 |
14 | 19d4321 |
15 | 11e68a3 |
hex | c48c39 |
12880953 has 6 divisors (see below), whose sum is σ = 18605834. Its totient is φ = 8587296.
The previous prime is 12880949. The next prime is 12880979. The reversal of 12880953 is 35908821.
It can be written as a sum of positive squares in only one way, i.e., 11209104 + 1671849 = 3348^2 + 1293^2 .
It is not a de Polignac number, because 12880953 - 22 = 12880949 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12880913) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715600 + ... + 715617.
Almost surely, 212880953 is an apocalyptic number.
It is an amenable number.
12880953 is a deficient number, since it is larger than the sum of its proper divisors (5724881).
12880953 is a wasteful number, since it uses less digits than its factorization.
12880953 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1431223 (or 1431220 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 36.
The square root of 12880953 is about 3589.0044580635. The cubic root of 12880953 is about 234.4135247606.
The spelling of 12880953 in words is "twelve million, eight hundred eighty thousand, nine hundred fifty-three".
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