Base | Representation |
---|---|
bin | 10111000100100110… |
… | …11000111000000110 |
3 | 1011222020200221011220 |
4 | 23202103120320012 |
5 | 200331441334123 |
6 | 5405041141210 |
7 | 615644640543 |
oct | 134223307006 |
9 | 34866627156 |
10 | 12386668038 |
11 | 5286a51038 |
12 | 249832a806 |
13 | 12252b8a94 |
14 | 857111bca |
15 | 4c769dce3 |
hex | 2e24d8e06 |
12386668038 has 16 divisors (see below), whose sum is σ = 24778627056. Its totient is φ = 4128007520.
The previous prime is 12386668033. The next prime is 12386668069. The reversal of 12386668038 is 83086668321.
It is a super-2 number, since 2×123866680382 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12386668033) 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, 189693 + ... + 246488.
It is an arithmetic number, because the mean of its divisors is an integer number (1548664191).
Almost surely, 212386668038 is an apocalyptic number.
12386668038 is an abundant number, since it is smaller than the sum of its proper divisors (12391959018).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12386668038 is a wasteful number, since it uses less digits than its factorization.
12386668038 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 440919.
The product of its (nonzero) digits is 1990656, while the sum is 51.
The spelling of 12386668038 in words is "twelve billion, three hundred eighty-six million, six hundred sixty-eight thousand, thirty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •