Base | Representation |
---|---|
bin | 110001000111… |
… | …010010000101 |
3 | 220020010000121 |
4 | 301013102011 |
5 | 11243444020 |
6 | 1135541541 |
7 | 214302052 |
oct | 61072205 |
9 | 26203017 |
10 | 12874885 |
11 | 72a4101 |
12 | 438a8b1 |
13 | 288a29a |
14 | 19d2029 |
15 | 11e4baa |
hex | c47485 |
12874885 has 4 divisors (see below), whose sum is σ = 15449868. Its totient is φ = 10299904.
The previous prime is 12874859. The next prime is 12874903. The reversal of 12874885 is 58847821.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 7667361 + 5207524 = 2769^2 + 2282^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12874885 is a prime.
It is a Duffinian number.
It is a congruent number.
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, 1287484 + ... + 1287493.
It is an arithmetic number, because the mean of its divisors is an integer number (3862467).
Almost surely, 212874885 is an apocalyptic number.
It is an amenable number.
12874885 is a deficient number, since it is larger than the sum of its proper divisors (2574983).
12874885 is an equidigital number, since it uses as much as digits as its factorization.
12874885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2574982.
The product of its digits is 143360, while the sum is 43.
The square root of 12874885 is about 3588.1589987067. The cubic root of 12874885 is about 234.3767095579.
The spelling of 12874885 in words is "twelve million, eight hundred seventy-four thousand, eight hundred eighty-five".
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