Base | Representation |
---|---|
bin | 100101101000001111… |
… | …1110001001010001000 |
3 | 21201120121101020200100 |
4 | 1023100133301022020 |
5 | 2310443143300242 |
6 | 101042235005400 |
7 | 5560324365450 |
oct | 1132037611210 |
9 | 251517336610 |
10 | 80807400072 |
11 | 312a7741773 |
12 | 137b2299860 |
13 | 780a4a9039 |
14 | 3ca80acd60 |
15 | 217e30854c |
hex | 12d07f1288 |
80807400072 has 96 divisors (see below), whose sum is σ = 251220340800. Its totient is φ = 22986087552.
The previous prime is 80807400019. The next prime is 80807400101. The reversal of 80807400072 is 27000470808.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238747 + ... + 467562.
It is an arithmetic number, because the mean of its divisors is an integer number (2616878550).
Almost surely, 280807400072 is an apocalyptic number.
It is an amenable number.
80807400072 is an abundant number, since it is smaller than the sum of its proper divisors (170412940728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80807400072 is a wasteful number, since it uses less digits than its factorization.
80807400072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 706555 (or 706548 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 36.
The spelling of 80807400072 in words is "eighty billion, eight hundred seven million, four hundred thousand, seventy-two".
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