Base | Representation |
---|---|
bin | 10111110111011110… |
… | …00101000011011111 |
3 | 1020001222120222210010 |
4 | 23323233011003133 |
5 | 202220204413104 |
6 | 5515242414303 |
7 | 632345511522 |
oct | 137357050337 |
9 | 36058528703 |
10 | 12813357279 |
11 | 5485895a78 |
12 | 2597201393 |
13 | 1292813418 |
14 | 897a62bb9 |
15 | 4eed85489 |
hex | 2fbbc50df |
12813357279 has 16 divisors (see below), whose sum is σ = 17619464192. Its totient is φ = 8277873408.
The previous prime is 12813357259. The next prime is 12813357287. The reversal of 12813357279 is 97275331821.
It is not a de Polignac number, because 12813357279 - 211 = 12813355231 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12813357229) 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, 374674 + ... + 407439.
It is an arithmetic number, because the mean of its divisors is an integer number (1101216512).
Almost surely, 212813357279 is an apocalyptic number.
12813357279 is a deficient number, since it is larger than the sum of its proper divisors (4806106913).
12813357279 is a wasteful number, since it uses less digits than its factorization.
12813357279 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 782286.
The product of its digits is 635040, while the sum is 48.
The spelling of 12813357279 in words is "twelve billion, eight hundred thirteen million, three hundred fifty-seven thousand, two hundred seventy-nine".
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