Base | Representation |
---|---|
bin | 10110101011110110… |
… | …11010010100001000 |
3 | 1011102210001010211201 |
4 | 23111323122110020 |
5 | 144420314242010 |
6 | 5332303233544 |
7 | 610544160355 |
oct | 132573322410 |
9 | 34383033751 |
10 | 12179055880 |
11 | 518a839a42 |
12 | 243a8a88b4 |
13 | 11c1297a54 |
14 | 83770b62c |
15 | 4b433e23a |
hex | 2d5eda508 |
12179055880 has 32 divisors (see below), whose sum is σ = 27430018200. Its totient is φ = 4866797056.
The previous prime is 12179055877. The next prime is 12179055893. The reversal of 12179055880 is 8855097121.
12179055880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 6015863844 + 6163192036 = 77562^2 + 78506^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 12179055880.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109765 + ... + 190804.
Almost surely, 212179055880 is an apocalyptic number.
12179055880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12179055880 is an abundant number, since it is smaller than the sum of its proper divisors (15250962320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12179055880 is a wasteful number, since it uses less digits than its factorization.
12179055880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 301593 (or 301589 counting only the distinct ones).
The product of its (nonzero) digits is 201600, while the sum is 46.
The spelling of 12179055880 in words is "twelve billion, one hundred seventy-nine million, fifty-five thousand, eight hundred eighty".
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