Base | Representation |
---|---|
bin | 110001000010… |
… | …111101010000 |
3 | 220012012201102 |
4 | 301002331100 |
5 | 11242412133 |
6 | 1135323532 |
7 | 214166312 |
oct | 61027520 |
9 | 26165642 |
10 | 12857168 |
11 | 7291865 |
12 | 43805a8 |
13 | 28821bc |
14 | 19c97b2 |
15 | 11de7e8 |
hex | c42f50 |
12857168 has 20 divisors (see below), whose sum is σ = 26376660. Its totient is φ = 6050304.
The previous prime is 12857147. The next prime is 12857209. The reversal of 12857168 is 86175821.
It can be written as a sum of positive squares in 2 ways, for example, as 4048144 + 8809024 = 2012^2 + 2968^2 .
It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23363 + ... + 23906.
It is an arithmetic number, because the mean of its divisors is an integer number (1318833).
Almost surely, 212857168 is an apocalyptic number.
It is an amenable number.
12857168 is an abundant number, since it is smaller than the sum of its proper divisors (13519492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12857168 is a wasteful number, since it uses less digits than its factorization.
12857168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47294 (or 47288 counting only the distinct ones).
The product of its digits is 26880, while the sum is 38.
The square root of 12857168 is about 3585.6893340054. The cubic root of 12857168 is about 234.2691523943.
The spelling of 12857168 in words is "twelve million, eight hundred fifty-seven thousand, one hundred sixty-eight".
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