Base | Representation |
---|---|
bin | 10111111110100110… |
… | …01111010101111100 |
3 | 1020020011010201000100 |
4 | 23333103033111330 |
5 | 202331012341002 |
6 | 5525220401100 |
7 | 634003060530 |
oct | 137723172574 |
9 | 36204121010 |
10 | 12873168252 |
11 | 550662792a |
12 | 25b3246190 |
13 | 12a2025329 |
14 | 8a1991bc0 |
15 | 50524c11c |
hex | 2ff4cf57c |
12873168252 has 72 divisors (see below), whose sum is σ = 38388826112. Its totient is φ = 3559399200.
The previous prime is 12873168193. The next prime is 12873168271. The reversal of 12873168252 is 25286137821.
12873168252 is a `hidden beast` number, since 1 + 2 + 87 + 316 + 8 + 252 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 12873168198 and 12873168207.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816124 + ... + 831747.
Almost surely, 212873168252 is an apocalyptic number.
12873168252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12873168252 is an abundant number, since it is smaller than the sum of its proper divisors (25515657860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12873168252 is a wasteful number, since it uses less digits than its factorization.
12873168252 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1647919 (or 1647914 counting only the distinct ones).
The product of its digits is 322560, while the sum is 45.
The spelling of 12873168252 in words is "twelve billion, eight hundred seventy-three million, one hundred sixty-eight thousand, two hundred fifty-two".
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