Base | Representation |
---|---|
bin | 10111111100101011… |
… | …01110100011011000 |
3 | 1020012000210110112201 |
4 | 23332111232203120 |
5 | 202312400340120 |
6 | 5523443015544 |
7 | 633416030563 |
oct | 137625564330 |
9 | 36160713481 |
10 | 12857043160 |
11 | 54a8513905 |
12 | 25a996a5b4 |
13 | 129b89a860 |
14 | 89d7954da |
15 | 503b1440a |
hex | 2fe56e8d8 |
12857043160 has 128 divisors (see below), whose sum is σ = 31842720000. Its totient is φ = 4642799616.
The previous prime is 12857043149. The next prime is 12857043187. The reversal of 12857043160 is 6134075821.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12373921 + ... + 12374959.
It is an arithmetic number, because the mean of its divisors is an integer number (248771250).
Almost surely, 212857043160 is an apocalyptic number.
12857043160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12857043160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15921360000).
12857043160 is an abundant number, since it is smaller than the sum of its proper divisors (18985676840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12857043160 is a wasteful number, since it uses less digits than its factorization.
12857043160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1565 (or 1561 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 37.
The spelling of 12857043160 in words is "twelve billion, eight hundred fifty-seven million, forty-three thousand, one hundred sixty".
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