Base | Representation |
---|---|
bin | 100101010110010110… |
… | …1101010111000101101 |
3 | 21200000202202001021000 |
4 | 1022230231222320231 |
5 | 2303231002031441 |
6 | 100502511430513 |
7 | 5536414541355 |
oct | 1125455527055 |
9 | 250022661230 |
10 | 80207064621 |
11 | 31019884872 |
12 | 13665225439 |
13 | 7742cc3868 |
14 | 3c4c479b65 |
15 | 21467712b6 |
hex | 12acb6ae2d |
80207064621 has 64 divisors (see below), whose sum is σ = 124784640000. Its totient is φ = 50848814016.
The previous prime is 80207064593. The next prime is 80207064631. The reversal of 80207064621 is 12646070208.
80207064621 is a `hidden beast` number, since 8 + 0 + 2 + 0 + 7 + 0 + 646 + 2 + 1 = 666.
It is not a de Polignac number, because 80207064621 - 217 = 80206933549 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80207064631) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29628150 + ... + 29630856.
It is an arithmetic number, because the mean of its divisors is an integer number (1949760000).
Almost surely, 280207064621 is an apocalyptic number.
It is an amenable number.
80207064621 is a deficient number, since it is larger than the sum of its proper divisors (44577575379).
80207064621 is a wasteful number, since it uses less digits than its factorization.
80207064621 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3303 (or 3297 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 36.
The spelling of 80207064621 in words is "eighty billion, two hundred seven million, sixty-four thousand, six hundred twenty-one".
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