Base | Representation |
---|---|
bin | 100101101011010100… |
… | …0111011110010101100 |
3 | 21201211210022112212002 |
4 | 1023112220323302230 |
5 | 2311201034404340 |
6 | 101100400031432 |
7 | 5563015421033 |
oct | 1132650736254 |
9 | 251753275762 |
10 | 80910466220 |
11 | 3134a937901 |
12 | 13820902578 |
13 | 782595431c |
14 | 3cb7a5b71a |
15 | 21883b6715 |
hex | 12d6a3bcac |
80910466220 has 24 divisors (see below), whose sum is σ = 170367522864. Its totient is φ = 32277416256.
The previous prime is 80910466199. The next prime is 80910466249. The reversal of 80910466220 is 2266401908.
It is a super-2 number, since 2×809104662202 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5415494 + ... + 5430413.
It is an arithmetic number, because the mean of its divisors is an integer number (7098646786).
Almost surely, 280910466220 is an apocalyptic number.
It is an amenable number.
80910466220 is an abundant number, since it is smaller than the sum of its proper divisors (89457056644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80910466220 is a wasteful number, since it uses less digits than its factorization.
80910466220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10846289 (or 10846287 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 38.
The spelling of 80910466220 in words is "eighty billion, nine hundred ten million, four hundred sixty-six thousand, two hundred twenty".
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