Base | Representation |
---|---|
bin | 100101011100111010… |
… | …0011110111101001000 |
3 | 21200121002111121120010 |
4 | 1022321310132331020 |
5 | 2304203300021233 |
6 | 100540404431520 |
7 | 5545024556052 |
oct | 1127164367510 |
9 | 250532447503 |
10 | 80426954568 |
11 | 31121a123a4 |
12 | 137069a85a0 |
13 | 777972315c |
14 | 3c6d7588d2 |
15 | 215ac08b63 |
hex | 12b9d1ef48 |
80426954568 has 32 divisors (see below), whose sum is σ = 203899325760. Its totient is φ = 26431392960.
The previous prime is 80426954563. The next prime is 80426954579. The reversal of 80426954568 is 86545962408.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (80426954561) 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, 23597755 + ... + 23601162.
It is an arithmetic number, because the mean of its divisors is an integer number (6371853930).
Almost surely, 280426954568 is an apocalyptic number.
It is an amenable number.
80426954568 is an abundant number, since it is smaller than the sum of its proper divisors (123472371192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80426954568 is a wasteful number, since it uses less digits than its factorization.
80426954568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47198997 (or 47198993 counting only the distinct ones).
The product of its (nonzero) digits is 16588800, while the sum is 57.
The spelling of 80426954568 in words is "eighty billion, four hundred twenty-six million, nine hundred fifty-four thousand, five hundred sixty-eight".
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