Base | Representation |
---|---|
bin | 11000011111000111… |
… | …01100101011001100 |
3 | 1020221011100211112122 |
4 | 30033203230223030 |
5 | 203410323340111 |
6 | 10012242352112 |
7 | 643524314000 |
oct | 141743545314 |
9 | 36834324478 |
10 | 13145918156 |
11 | 5636589978 |
12 | 266a65b638 |
13 | 13166a19c7 |
14 | 8c9cb0700 |
15 | 51e176cdb |
hex | 30f8ecacc |
13145918156 has 48 divisors (see below), whose sum is σ = 27693926400. Its totient is φ = 5452206480.
The previous prime is 13145918129. The next prime is 13145918221. The reversal of 13145918156 is 65181954131.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112010 + ... + 197073.
It is an arithmetic number, because the mean of its divisors is an integer number (576956800).
Almost surely, 213145918156 is an apocalyptic number.
It is an amenable number.
13145918156 is an abundant number, since it is smaller than the sum of its proper divisors (14548008244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13145918156 is a wasteful number, since it uses less digits than its factorization.
13145918156 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309139 (or 309123 counting only the distinct ones).
The product of its digits is 129600, while the sum is 44.
The spelling of 13145918156 in words is "thirteen billion, one hundred forty-five million, nine hundred eighteen thousand, one hundred fifty-six".
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