Base | Representation |
---|---|
bin | 10111010011111010… |
… | …00010101000101100 |
3 | 1012022012020021021001 |
4 | 23221331002220230 |
5 | 201112321340000 |
6 | 5425504250044 |
7 | 622063656433 |
oct | 135175025054 |
9 | 35265207231 |
10 | 12515027500 |
11 | 5342452438 |
12 | 2513310924 |
13 | 1245a7b921 |
14 | 86a1a611a |
15 | 4d3aa646a |
hex | 2e9f42a2c |
12515027500 has 30 divisors (see below), whose sum is σ = 27367867604. Its totient is φ = 5006010000.
The previous prime is 12515027461. The next prime is 12515027617. The reversal of 12515027500 is 572051521.
12515027500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2500506 + ... + 2505505.
Almost surely, 212515027500 is an apocalyptic number.
12515027500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12515027500 is an abundant number, since it is smaller than the sum of its proper divisors (14852840104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12515027500 is an equidigital number, since it uses as much as digits as its factorization.
12515027500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5006035 (or 5006018 counting only the distinct ones).
The product of its (nonzero) digits is 3500, while the sum is 28.
The spelling of 12515027500 in words is "twelve billion, five hundred fifteen million, twenty-seven thousand, five hundred".
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