Base | Representation |
---|---|
bin | 110001000101… |
… | …110010011001 |
3 | 220012210121210 |
4 | 301011302121 |
5 | 11243300021 |
6 | 1135453333 |
7 | 214245153 |
oct | 61056231 |
9 | 26183553 |
10 | 12868761 |
11 | 729a544 |
12 | 4387249 |
13 | 2887569 |
14 | 19cdad3 |
15 | 11e2e76 |
hex | c45c99 |
12868761 has 8 divisors (see below), whose sum is σ = 17226144. Its totient is φ = 8545280.
The previous prime is 12868729. The next prime is 12868781. The reversal of 12868761 is 16786821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12868761 - 25 = 12868729 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12868781) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7575 + ... + 9116.
It is an arithmetic number, because the mean of its divisors is an integer number (2153268).
Almost surely, 212868761 is an apocalyptic number.
It is an amenable number.
12868761 is a deficient number, since it is larger than the sum of its proper divisors (4357383).
12868761 is a wasteful number, since it uses less digits than its factorization.
12868761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16951.
The product of its digits is 32256, while the sum is 39.
The square root of 12868761 is about 3587.3055347991. The cubic root of 12868761 is about 234.3395428673.
The spelling of 12868761 in words is "twelve million, eight hundred sixty-eight thousand, seven hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.090 sec. • engine limits •