Base | Representation |
---|---|
bin | 110001001011… |
… | …101101010101 |
3 | 220021000220000 |
4 | 301023231111 |
5 | 11300034023 |
6 | 1140201513 |
7 | 214405650 |
oct | 61135525 |
9 | 26230800 |
10 | 12893013 |
11 | 7306791 |
12 | 4399299 |
13 | 2895603 |
14 | 19d8897 |
15 | 11ea243 |
hex | c4bb55 |
12893013 has 20 divisors (see below), whose sum is σ = 22012320. Its totient is φ = 7367112.
The previous prime is 12893009. The next prime is 12893017. The reversal of 12893013 is 31039821.
It is an interprime number because it is at equal distance from previous prime (12893009) and next prime (12893017).
It is not a de Polignac number, because 12893013 - 22 = 12893009 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12893017) 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 19 ways as a sum of consecutive naturals, for example, 10803 + ... + 11936.
It is an arithmetic number, because the mean of its divisors is an integer number (1100616).
Almost surely, 212893013 is an apocalyptic number.
It is an amenable number.
12893013 is a deficient number, since it is larger than the sum of its proper divisors (9119307).
12893013 is an equidigital number, since it uses as much as digits as its factorization.
12893013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22758 (or 22749 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 12893013 is about 3590.6841966400. The cubic root of 12893013 is about 234.4866597552.
It can be divided in two parts, 12 and 893013, that added together give a square (893025 = 9452).
The spelling of 12893013 in words is "twelve million, eight hundred ninety-three thousand, thirteen".
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