Base | Representation |
---|---|
bin | 10111111110100100… |
… | …00001111110100101 |
3 | 1020020010112121022210 |
4 | 23333102001332211 |
5 | 202330422220430 |
6 | 5525205514033 |
7 | 634000300623 |
oct | 137722017645 |
9 | 36203477283 |
10 | 12872851365 |
11 | 5506430840 |
12 | 25b3112919 |
13 | 12a1c4401a |
14 | 8a190c513 |
15 | 5051d82b0 |
hex | 2ff481fa5 |
12872851365 has 16 divisors (see below), whose sum is σ = 22468977216. Its totient is φ = 6241382400.
The previous prime is 12872851363. The next prime is 12872851373. The reversal of 12872851365 is 56315827821.
It is not a de Polignac number, because 12872851365 - 21 = 12872851363 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12872851363) 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, 39008476 + ... + 39008805.
It is an arithmetic number, because the mean of its divisors is an integer number (1404311076).
Almost surely, 212872851365 is an apocalyptic number.
12872851365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12872851365 is a deficient number, since it is larger than the sum of its proper divisors (9596125851).
12872851365 is a wasteful number, since it uses less digits than its factorization.
12872851365 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78017300.
The product of its digits is 806400, while the sum is 48.
The spelling of 12872851365 in words is "twelve billion, eight hundred seventy-two million, eight hundred fifty-one thousand, three hundred sixty-five".
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