Base | Representation |
---|---|
bin | 10110011111111110… |
… | …11101111010001101 |
3 | 1011011211121221100000 |
4 | 23033333131322031 |
5 | 144214320042020 |
6 | 5314344354513 |
7 | 605224452360 |
oct | 131777357215 |
9 | 34154557300 |
10 | 12079455885 |
11 | 51395a0aa2 |
12 | 2411475a39 |
13 | 11a6764343 |
14 | 8283c20d7 |
15 | 4aa718090 |
hex | 2cffdde8d |
12079455885 has 48 divisors (see below), whose sum is σ = 24815097216. Its totient is φ = 5522033088.
The previous prime is 12079455821. The next prime is 12079455889. The reversal of 12079455885 is 58855497021.
12079455885 is a `hidden beast` number, since 1 + 2 + 0 + 7 + 9 + 4 + 558 + 85 = 666.
It is not a de Polignac number, because 12079455885 - 26 = 12079455821 is a prime.
It is a super-2 number, since 2×120794558852 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12079455889) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 701634 + ... + 718643.
It is an arithmetic number, because the mean of its divisors is an integer number (516981192).
Almost surely, 212079455885 is an apocalyptic number.
12079455885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12079455885 is an abundant number, since it is smaller than the sum of its proper divisors (12735641331).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12079455885 is an equidigital number, since it uses as much as digits as its factorization.
12079455885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1420304 (or 1420292 counting only the distinct ones).
The product of its (nonzero) digits is 4032000, while the sum is 54.
The spelling of 12079455885 in words is "twelve billion, seventy-nine million, four hundred fifty-five thousand, eight hundred eighty-five".
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