Base | Representation |
---|---|
bin | 10111010100010111… |
… | …01011010110110011 |
3 | 1012022110110012101000 |
4 | 23222023223112303 |
5 | 201114312124212 |
6 | 5430122413043 |
7 | 622141406445 |
oct | 135213532663 |
9 | 35273405330 |
10 | 12518864307 |
11 | 5344633054 |
12 | 2514661183 |
13 | 12467c3121 |
14 | 86a8c4495 |
15 | 4d40b31dc |
hex | 2ea2eb5b3 |
12518864307 has 16 divisors (see below), whose sum is σ = 18823281280. Its totient is φ = 8221342536.
The previous prime is 12518864287. The next prime is 12518864339. The reversal of 12518864307 is 70346881521.
12518864307 is a `hidden beast` number, since 12 + 518 + 86 + 43 + 0 + 7 = 666.
It is a de Polignac number, because none of the positive numbers 2k-12518864307 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12518864377) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3458353 + ... + 3461970.
It is an arithmetic number, because the mean of its divisors is an integer number (1176455080).
Almost surely, 212518864307 is an apocalyptic number.
12518864307 is a deficient number, since it is larger than the sum of its proper divisors (6304416973).
12518864307 is an equidigital number, since it uses as much as digits as its factorization.
12518864307 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6920399 (or 6920393 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The spelling of 12518864307 in words is "twelve billion, five hundred eighteen million, eight hundred sixty-four thousand, three hundred seven".
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