Base | Representation |
---|---|
bin | 110001000010… |
… | …101110001001 |
3 | 220012011101121 |
4 | 301002232021 |
5 | 11242344301 |
6 | 1135315241 |
7 | 214163431 |
oct | 61025611 |
9 | 26164347 |
10 | 12856201 |
11 | 7291066 |
12 | 437bb21 |
13 | 2881927 |
14 | 19c92c1 |
15 | 11de3a1 |
hex | c42b89 |
12856201 has 2 divisors, whose sum is σ = 12856202. Its totient is φ = 12856200.
The previous prime is 12856187. The next prime is 12856211. The reversal of 12856201 is 10265821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9616201 + 3240000 = 3101^2 + 1800^2 .
It is a cyclic number.
It is not a de Polignac number, because 12856201 - 25 = 12856169 is a prime.
It is not a weakly prime, because it can be changed into another prime (12856211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428100 + 6428101.
It is an arithmetic number, because the mean of its divisors is an integer number (6428101).
Almost surely, 212856201 is an apocalyptic number.
It is an amenable number.
12856201 is a deficient number, since it is larger than the sum of its proper divisors (1).
12856201 is an equidigital number, since it uses as much as digits as its factorization.
12856201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 960, while the sum is 25.
The square root of 12856201 is about 3585.5544898941. The cubic root of 12856201 is about 234.2632790441.
The spelling of 12856201 in words is "twelve million, eight hundred fifty-six thousand, two hundred one".
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