Base | Representation |
---|---|
bin | 100101011000110001… |
… | …1010101111110110111 |
3 | 21200020102111100221022 |
4 | 1022301203111332313 |
5 | 2303412242244024 |
6 | 100514531411355 |
7 | 5541421545032 |
oct | 1126143257667 |
9 | 250212440838 |
10 | 80288243639 |
11 | 3106069086a |
12 | 13688453b5b |
13 | 7756a77796 |
14 | 3c5916c019 |
15 | 214d95935e |
hex | 12b18d5fb7 |
80288243639 has 2 divisors, whose sum is σ = 80288243640. Its totient is φ = 80288243638.
The previous prime is 80288243611. The next prime is 80288243681. The reversal of 80288243639 is 93634288208.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80288243639 - 212 = 80288239543 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80288243699) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40144121819 + 40144121820.
It is an arithmetic number, because the mean of its divisors is an integer number (40144121820).
Almost surely, 280288243639 is an apocalyptic number.
80288243639 is a deficient number, since it is larger than the sum of its proper divisors (1).
80288243639 is an equidigital number, since it uses as much as digits as its factorization.
80288243639 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3981312, while the sum is 53.
The spelling of 80288243639 in words is "eighty billion, two hundred eighty-eight million, two hundred forty-three thousand, six hundred thirty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •