Base | Representation |
---|---|
bin | 110001000011… |
… | …110111010101 |
3 | 220012101211002 |
4 | 301003313111 |
5 | 11243022020 |
6 | 1135353045 |
7 | 214213202 |
oct | 61036725 |
9 | 26171732 |
10 | 12860885 |
11 | 7294634 |
12 | 4382785 |
13 | 2883abb |
14 | 19caca9 |
15 | 11e0975 |
hex | c43dd5 |
12860885 has 8 divisors (see below), whose sum is σ = 15465816. Its totient is φ = 10266880.
The previous prime is 12860873. The next prime is 12860893. The reversal of 12860885 is 58806821.
12860885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 12453841 = 638^2 + 3529^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-12860885 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 137 + ... + 5073.
It is an arithmetic number, because the mean of its divisors is an integer number (1933227).
Almost surely, 212860885 is an apocalyptic number.
It is an amenable number.
12860885 is a deficient number, since it is larger than the sum of its proper divisors (2604931).
12860885 is an equidigital number, since it uses as much as digits as its factorization.
12860885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5463.
The product of its (nonzero) digits is 30720, while the sum is 38.
The square root of 12860885 is about 3586.2076069296. The cubic root of 12860885 is about 234.2917259123.
The spelling of 12860885 in words is "twelve million, eight hundred sixty thousand, eight hundred eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.111 sec. • engine limits •