Base | Representation |
---|---|
bin | 110000001000… |
… | …100101100101 |
3 | 212202001202111 |
4 | 300020211211 |
5 | 11212234320 |
6 | 1130241021 |
7 | 212152264 |
oct | 60104545 |
9 | 25661674 |
10 | 12618085 |
11 | 7139177 |
12 | 4286171 |
13 | 27ca42c |
14 | 19665db |
15 | 1193a5a |
hex | c08965 |
12618085 has 16 divisors (see below), whose sum is σ = 15777792. Its totient is φ = 9676800.
The previous prime is 12618083. The next prime is 12618091. The reversal of 12618085 is 58081621.
It is not a de Polignac number, because 12618085 - 21 = 12618083 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12618083) 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, 19365 + ... + 20005.
It is an arithmetic number, because the mean of its divisors is an integer number (986112).
Almost surely, 212618085 is an apocalyptic number.
It is an amenable number.
12618085 is a deficient number, since it is larger than the sum of its proper divisors (3159707).
12618085 is a wasteful number, since it uses less digits than its factorization.
12618085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 804.
The product of its (nonzero) digits is 3840, while the sum is 31.
The square root of 12618085 is about 3552.1943922032. The cubic root of 12618085 is about 232.8079551235.
The spelling of 12618085 in words is "twelve million, six hundred eighteen thousand, eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.138 sec. • engine limits •