Base | Representation |
---|---|
bin | 10111010101100000… |
… | …11100100001100110 |
3 | 1012100010120220000102 |
4 | 23222300130201212 |
5 | 201124244043021 |
6 | 5431105144102 |
7 | 622316342324 |
oct | 135260344146 |
9 | 35303526012 |
10 | 12528502886 |
11 | 534a016719 |
12 | 251792b032 |
13 | 12487b9323 |
14 | 86bcb2d14 |
15 | 4d4d6900b |
hex | 2eac1c866 |
12528502886 has 24 divisors (see below), whose sum is σ = 19950892920. Its totient is φ = 5880193920.
The previous prime is 12528502879. The next prime is 12528502897. The reversal of 12528502886 is 68820582521.
It is a happy number.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 12528502886.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9950525 + ... + 9951783.
It is an arithmetic number, because the mean of its divisors is an integer number (831287205).
Almost surely, 212528502886 is an apocalyptic number.
12528502886 is a deficient number, since it is larger than the sum of its proper divisors (7422390034).
12528502886 is an equidigital number, since it uses as much as digits as its factorization.
12528502886 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2360 (or 1819 counting only the distinct ones).
The product of its (nonzero) digits is 614400, while the sum is 47.
The spelling of 12528502886 in words is "twelve billion, five hundred twenty-eight million, five hundred two thousand, eight hundred eighty-six".
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