Base | Representation |
---|---|
bin | 101111111111… |
… | …011111111111 |
3 | 212200011200220 |
4 | 233333133333 |
5 | 11210041423 |
6 | 1125352423 |
7 | 211635621 |
oct | 57773777 |
9 | 25604626 |
10 | 12580863 |
11 | 7113209 |
12 | 4268713 |
13 | 27b64c9 |
14 | 1956c11 |
15 | 11879e3 |
hex | bff7ff |
12580863 has 8 divisors (see below), whose sum is σ = 16940976. Its totient is φ = 8304000.
The previous prime is 12580859. The next prime is 12580871. The reversal of 12580863 is 36808521.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12580863 - 22 = 12580859 is a prime.
It is a super-2 number, since 2×125808632 = 316556227649538, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12580063) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20458 + ... + 21063.
It is an arithmetic number, because the mean of its divisors is an integer number (2117622).
Almost surely, 212580863 is an apocalyptic number.
12580863 is a deficient number, since it is larger than the sum of its proper divisors (4360113).
12580863 is a wasteful number, since it uses less digits than its factorization.
12580863 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41625.
The product of its (nonzero) digits is 11520, while the sum is 33.
The square root of 12580863 is about 3546.9512260532. The cubic root of 12580863 is about 232.5788101426.
The spelling of 12580863 in words is "twelve million, five hundred eighty thousand, eight hundred sixty-three".
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