Base | Representation |
---|---|
bin | 10111101111011011… |
… | …00010111101011100 |
3 | 1012220021120002120100 |
4 | 23313231202331130 |
5 | 202100414042440 |
6 | 5504431421100 |
7 | 630565623453 |
oct | 136755427534 |
9 | 35807502510 |
10 | 12745846620 |
11 | 5450775241 |
12 | 2578684790 |
13 | 12818369a0 |
14 | 88cacbb9a |
15 | 4e8e9c230 |
hex | 2f7b62f5c |
12745846620 has 72 divisors (see below), whose sum is σ = 41636439936. Its totient is φ = 3137438592.
The previous prime is 12745846573. The next prime is 12745846733. The reversal of 12745846620 is 2664854721.
12745846620 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 584 + 6 + 62 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2721132 + ... + 2725811.
It is an arithmetic number, because the mean of its divisors is an integer number (578283888).
Almost surely, 212745846620 is an apocalyptic number.
12745846620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12745846620 is an abundant number, since it is smaller than the sum of its proper divisors (28890593316).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12745846620 is a wasteful number, since it uses less digits than its factorization.
12745846620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5446971 (or 5446966 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 12745846620 in words is "twelve billion, seven hundred forty-five million, eight hundred forty-six thousand, six hundred twenty".
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