Base | Representation |
---|---|
bin | 100100010111101111… |
… | …0111100101111101100 |
3 | 21110121100022121222110 |
4 | 1020233132330233230 |
5 | 2234430122203422 |
6 | 55514215444020 |
7 | 5433353334006 |
oct | 1105736745754 |
9 | 243540277873 |
10 | 78106053612 |
11 | 30140916134 |
12 | 13179686610 |
13 | 7499940792 |
14 | 3acd409376 |
15 | 20720a960c |
hex | 122f7bcbec |
78106053612 has 48 divisors (see below), whose sum is σ = 184363452000. Its totient is φ = 25733283840.
The previous prime is 78106053517. The next prime is 78106053643. The reversal of 78106053612 is 21635060187.
It is a super-2 number, since 2×781060536122 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235764 + ... + 3259812.
It is an arithmetic number, because the mean of its divisors is an integer number (3840905250).
Almost surely, 278106053612 is an apocalyptic number.
It is an amenable number.
78106053612 is an abundant number, since it is smaller than the sum of its proper divisors (106257398388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78106053612 is a wasteful number, since it uses less digits than its factorization.
78106053612 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27186 (or 27184 counting only the distinct ones).
The product of its (nonzero) digits is 60480, while the sum is 39.
The spelling of 78106053612 in words is "seventy-eight billion, one hundred six million, fifty-three thousand, six hundred twelve".
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