Base | Representation |
---|---|
bin | 10111101010111100… |
… | …01010000101001101 |
3 | 1012210122211101211212 |
4 | 23311132022011031 |
5 | 202011303230000 |
6 | 5501010024205 |
7 | 626631261143 |
oct | 136536120515 |
9 | 35718741755 |
10 | 12708258125 |
11 | 5431531472 |
12 | 2567b78065 |
13 | 1276b05984 |
14 | 887b05593 |
15 | 4e5a24c35 |
hex | 2f578a14d |
12708258125 has 10 divisors (see below), whose sum is σ = 15880240134. Its totient is φ = 10166606000.
The previous prime is 12708258041. The next prime is 12708258131. The reversal of 12708258125 is 52185280721.
It can be written as a sum of positive squares in 5 ways, for example, as 1221991849 + 11486266276 = 34957^2 + 107174^2 .
It is not a de Polignac number, because 12708258125 - 220 = 12707209549 is a prime.
It is a super-2 number, since 2×127082581252 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10165982 + ... + 10167231.
Almost surely, 212708258125 is an apocalyptic number.
It is an amenable number.
12708258125 is a deficient number, since it is larger than the sum of its proper divisors (3171982009).
12708258125 is an frugal number, since it uses more digits than its factorization.
12708258125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20333233 (or 20333218 counting only the distinct ones).
The product of its (nonzero) digits is 89600, while the sum is 41.
The spelling of 12708258125 in words is "twelve billion, seven hundred eight million, two hundred fifty-eight thousand, one hundred twenty-five".
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