Base | Representation |
---|---|
bin | 10111010101000011… |
… | …01111000100011000 |
3 | 1012022212022222021222 |
4 | 23222201233010120 |
5 | 201122302143210 |
6 | 5430450351212 |
7 | 622241511620 |
oct | 135241570430 |
9 | 35285288258 |
10 | 12524646680 |
11 | 5347922477 |
12 | 251658b508 |
13 | 1247a69050 |
14 | 86b58b880 |
15 | 4d4856655 |
hex | 2ea86f118 |
12524646680 has 128 divisors (see below), whose sum is σ = 34914862080. Its totient is φ = 3937420800.
The previous prime is 12524646637. The next prime is 12524646707. The reversal of 12524646680 is 8664642521.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538247 + ... + 561033.
It is an arithmetic number, because the mean of its divisors is an integer number (272772360).
Almost surely, 212524646680 is an apocalyptic number.
12524646680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12524646680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17457431040).
12524646680 is an abundant number, since it is smaller than the sum of its proper divisors (22390215400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12524646680 is a wasteful number, since it uses less digits than its factorization.
12524646680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22969 (or 22965 counting only the distinct ones).
The product of its (nonzero) digits is 552960, while the sum is 44.
The spelling of 12524646680 in words is "twelve billion, five hundred twenty-four million, six hundred forty-six thousand, six hundred eighty".
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