Base | Representation |
---|---|
bin | 110001100101… |
… | …100101100101 |
3 | 220110102021221 |
4 | 301211211211 |
5 | 11311432023 |
6 | 1142340341 |
7 | 215326666 |
oct | 61454545 |
9 | 26412257 |
10 | 12999013 |
11 | 7379395 |
12 | 442a6b1 |
13 | 2901931 |
14 | 1a2536d |
15 | 121b85d |
hex | c65965 |
12999013 has 8 divisors (see below), whose sum is σ = 13544960. Its totient is φ = 12461040.
The previous prime is 12998987. The next prime is 12999043. The reversal of 12999013 is 31099921.
12999013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12999013 - 25 = 12998981 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12999013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12999043) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456 + ... + 5302.
It is an arithmetic number, because the mean of its divisors is an integer number (1693120).
Almost surely, 212999013 is an apocalyptic number.
It is an amenable number.
12999013 is a deficient number, since it is larger than the sum of its proper divisors (545947).
12999013 is a wasteful number, since it uses less digits than its factorization.
12999013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3987.
The product of its (nonzero) digits is 4374, while the sum is 34.
The square root of 12999013 is about 3605.4144005925. The cubic root of 12999013 is about 235.1275179360.
The spelling of 12999013 in words is "twelve million, nine hundred ninety-nine thousand, thirteen".
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