Base | Representation |
---|---|
bin | 10111001100110001… |
… | …11111111111111100 |
3 | 1012011000202011000121 |
4 | 23212120333333330 |
5 | 201002020412433 |
6 | 5415531104324 |
7 | 620436601000 |
oct | 134630777774 |
9 | 35130664017 |
10 | 12455247868 |
11 | 5311732088 |
12 | 24b72a20a4 |
13 | 123657b06b |
14 | 862284700 |
15 | 4cd6e8c2d |
hex | 2e663fffc |
12455247868 has 108 divisors (see below), whose sum is σ = 26776481200. Its totient is φ = 5066901840.
The previous prime is 12455247781. The next prime is 12455247887. The reversal of 12455247868 is 86874255421.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 95078163 + ... + 95078293.
Almost surely, 212455247868 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12455247868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13388240600).
12455247868 is an abundant number, since it is smaller than the sum of its proper divisors (14321233332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12455247868 is an equidigital number, since it uses as much as digits as its factorization.
12455247868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333 (or 163 counting only the distinct ones).
The product of its digits is 4300800, while the sum is 52.
The spelling of 12455247868 in words is "twelve billion, four hundred fifty-five million, two hundred forty-seven thousand, eight hundred sixty-eight".
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