Base | Representation |
---|---|
bin | 110001001011… |
… | …101111000101 |
3 | 220021001001011 |
4 | 301023233011 |
5 | 11300040000 |
6 | 1140202221 |
7 | 214406200 |
oct | 61135705 |
9 | 26231034 |
10 | 12893125 |
11 | 7306883 |
12 | 4399371 |
13 | 289568b |
14 | 19d8937 |
15 | 11ea2ba |
hex | c4bbc5 |
12893125 has 30 divisors (see below), whose sum is σ = 18786174. Its totient is φ = 8820000.
The previous prime is 12893099. The next prime is 12893129. The reversal of 12893125 is 52139821.
It can be written as a sum of positive squares in 5 ways, for example, as 9529569 + 3363556 = 3087^2 + 1834^2 .
It is a de Polignac number, because none of the positive numbers 2k-12893125 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12893129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30415 + ... + 30835.
Almost surely, 212893125 is an apocalyptic number.
It is an amenable number.
12893125 is a deficient number, since it is larger than the sum of its proper divisors (5893049).
12893125 is an frugal number, since it uses more digits than its factorization.
12893125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 455 (or 433 counting only the distinct ones).
The product of its digits is 4320, while the sum is 31.
The square root of 12893125 is about 3590.6997925196. The cubic root of 12893125 is about 234.4873387387.
The spelling of 12893125 in words is "twelve million, eight hundred ninety-three thousand, one hundred twenty-five".
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