Base | Representation |
---|---|
bin | 11101001101001101… |
… | …01110010100000000 |
3 | 1111110202211010121010 |
4 | 32212212232110000 |
5 | 224103044232122 |
6 | 11111530200520 |
7 | 1063365255312 |
oct | 164646562400 |
9 | 44422733533 |
10 | 15680070912 |
11 | 6716a9a3a0 |
12 | 3057283140 |
13 | 162b6cb38c |
14 | a8a6917b2 |
15 | 61b89be0c |
hex | 3a69ae500 |
15680070912 has 72 divisors (see below), whose sum is σ = 45525684960. Its totient is φ = 4751534080.
The previous prime is 15680070907. The next prime is 15680070919. The reversal of 15680070912 is 21907008651.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15680070919) 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, 919587 + ... + 936482.
It is an arithmetic number, because the mean of its divisors is an integer number (632301180).
Almost surely, 215680070912 is an apocalyptic number.
15680070912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
15680070912 is an abundant number, since it is smaller than the sum of its proper divisors (29845614048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15680070912 is a wasteful number, since it uses less digits than its factorization.
15680070912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1856099 (or 1856085 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 39.
The spelling of 15680070912 in words is "fifteen billion, six hundred eighty million, seventy thousand, nine hundred twelve".
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