Base | Representation |
---|---|
bin | 100101100111110001… |
… | …1000010101101110101 |
3 | 21201112111102111002200 |
4 | 1023033203002231311 |
5 | 2310430104344310 |
6 | 101040505455113 |
7 | 5560042154661 |
oct | 1131743025565 |
9 | 251474374080 |
10 | 80791481205 |
11 | 31299759686 |
12 | 137a8aa1499 |
13 | 78070c43a6 |
14 | 3ca5d278a1 |
15 | 217cc119c0 |
hex | 12cf8c2b75 |
80791481205 has 48 divisors (see below), whose sum is σ = 144934133760. Its totient is φ = 41583830400.
The previous prime is 80791481191. The next prime is 80791481269. The reversal of 80791481205 is 50218419708.
80791481205 is a `hidden beast` number, since 80 + 7 + 91 + 481 + 2 + 0 + 5 = 666.
It is not a de Polignac number, because 80791481205 - 210 = 80791480181 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3081100 + ... + 3107210.
It is an arithmetic number, because the mean of its divisors is an integer number (3019461120).
Almost surely, 280791481205 is an apocalyptic number.
It is an amenable number.
80791481205 is a deficient number, since it is larger than the sum of its proper divisors (64142652555).
80791481205 is a wasteful number, since it uses less digits than its factorization.
80791481205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28522 (or 28519 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 45.
The spelling of 80791481205 in words is "eighty billion, seven hundred ninety-one million, four hundred eighty-one thousand, two hundred five".
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