Base | Representation |
---|---|
bin | 110000011111… |
… | …110110101001 |
3 | 212220220111010 |
4 | 300133312221 |
5 | 11223312020 |
6 | 1132254133 |
7 | 213030156 |
oct | 60376651 |
9 | 25826433 |
10 | 12713385 |
11 | 71a3833 |
12 | 4311349 |
13 | 2831919 |
14 | 198d22d |
15 | 11b1de0 |
hex | c1fda9 |
12713385 has 16 divisors (see below), whose sum is σ = 20892096. Its totient is φ = 6596928.
The previous prime is 12713381. The next prime is 12713387. The reversal of 12713385 is 58331721.
It is not a de Polignac number, because 12713385 - 22 = 12713381 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12713381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10899 + ... + 12008.
It is an arithmetic number, because the mean of its divisors is an integer number (1305756).
Almost surely, 212713385 is an apocalyptic number.
12713385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12713385 is a deficient number, since it is larger than the sum of its proper divisors (8178711).
12713385 is a wasteful number, since it uses less digits than its factorization.
12713385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22952.
The product of its digits is 5040, while the sum is 30.
The square root of 12713385 is about 3565.5834024743. The cubic root of 12713385 is about 233.3925915253.
It can be divided in two parts, 1271 and 3385, that added together give a triangular number (4656 = T96).
The spelling of 12713385 in words is "twelve million, seven hundred thirteen thousand, three hundred eighty-five".
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