Base | Representation |
---|---|
bin | 100101010000011011… |
… | …0100110101001111111 |
3 | 21122111220022120200012 |
4 | 1022200312212221333 |
5 | 2302324032024444 |
6 | 100431042453435 |
7 | 5531450313311 |
oct | 1124066465177 |
9 | 248456276605 |
10 | 80008079999 |
11 | 30a27525771 |
12 | 1360a66427b |
13 | 7710a03793 |
14 | 3c2dc7d7b1 |
15 | 2134067b9e |
hex | 12a0da6a7f |
80008079999 has 32 divisors (see below), whose sum is σ = 86949676800. Its totient is φ = 73347563520.
The previous prime is 80008079959. The next prime is 80008080007. The reversal of 80008079999 is 99997080008.
It is a de Polignac number, because none of the positive numbers 2k-80008079999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80008079959) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35074739 + ... + 35077019.
It is an arithmetic number, because the mean of its divisors is an integer number (2717177400).
Almost surely, 280008079999 is an apocalyptic number.
80008079999 is a gapful number since it is divisible by the number (89) formed by its first and last digit.
80008079999 is a deficient number, since it is larger than the sum of its proper divisors (6941596801).
80008079999 is a wasteful number, since it uses less digits than its factorization.
80008079999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2723.
The product of its (nonzero) digits is 2939328, while the sum is 59.
The spelling of 80008079999 in words is "eighty billion, eight million, seventy-nine thousand, nine hundred ninety-nine".
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