Base | Representation |
---|---|
bin | 100101101011001010… |
… | …0011110001000110011 |
3 | 21201211102020000100122 |
4 | 1023112110132020303 |
5 | 2311143201230000 |
6 | 101100045040455 |
7 | 5562622006403 |
oct | 1132624361063 |
9 | 251742200318 |
10 | 80905101875 |
11 | 31347903564 |
12 | 1381ab5612b |
13 | 78247c6760 |
14 | 3cb7062803 |
15 | 2187ba7085 |
hex | 12d651e233 |
80905101875 has 80 divisors (see below), whose sum is σ = 116690097216. Its totient is φ = 55598400000.
The previous prime is 80905101803. The next prime is 80905101947. The reversal of 80905101875 is 57810150908.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (80905101803) and next prime (80905101947).
It is not a de Polignac number, because 80905101875 - 224 = 80888324659 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6908525 + ... + 6920225.
Almost surely, 280905101875 is an apocalyptic number.
80905101875 is a deficient number, since it is larger than the sum of its proper divisors (35784995341).
80905101875 is a wasteful number, since it uses less digits than its factorization.
80905101875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11794 (or 11779 counting only the distinct ones).
The product of its (nonzero) digits is 100800, while the sum is 44.
The spelling of 80905101875 in words is "eighty billion, nine hundred five million, one hundred one thousand, eight hundred seventy-five".
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