Base | Representation |
---|---|
bin | 100101101000110010… |
… | …0011010000010000101 |
3 | 21201121212020101201122 |
4 | 1023101210122002011 |
5 | 2311012300041120 |
6 | 101044120403325 |
7 | 5560633336010 |
oct | 1132144320205 |
9 | 251555211648 |
10 | 80825393285 |
11 | 3130691129a |
12 | 137b8316545 |
13 | 7811138c00 |
14 | 3caa634377 |
15 | 2180baea25 |
hex | 12d191a085 |
80825393285 has 48 divisors (see below), whose sum is σ = 120946193280. Its totient is φ = 50768789760.
The previous prime is 80825393237. The next prime is 80825393321. The reversal of 80825393285 is 58239352808.
It is not a de Polignac number, because 80825393285 - 216 = 80825327749 is a prime.
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, 722711 + ... + 827019.
It is an arithmetic number, because the mean of its divisors is an integer number (2519712360).
Almost surely, 280825393285 is an apocalyptic number.
It is an amenable number.
80825393285 is a deficient number, since it is larger than the sum of its proper divisors (40120799995).
80825393285 is a wasteful number, since it uses less digits than its factorization.
80825393285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104478 (or 104465 counting only the distinct ones).
The product of its (nonzero) digits is 4147200, while the sum is 53.
The spelling of 80825393285 in words is "eighty billion, eight hundred twenty-five million, three hundred ninety-three thousand, two hundred eighty-five".
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