Base | Representation |
---|---|
bin | 100101010111010100… |
… | …0010100111001000000 |
3 | 21200010000020121201210 |
4 | 1022232220110321000 |
5 | 2303312214440430 |
6 | 100510020530120 |
7 | 5540255046606 |
oct | 1125650247100 |
9 | 250100217653 |
10 | 80239218240 |
11 | 31035a46305 |
12 | 13673b50940 |
13 | 7749870b7c |
14 | 3c52849876 |
15 | 21494c32b0 |
hex | 12aea14e40 |
80239218240 has 112 divisors (see below), whose sum is σ = 261645026112. Its totient is φ = 20818814976.
The previous prime is 80239218239. The next prime is 80239218247. The reversal of 80239218240 is 4281293208.
It is not an unprimeable number, because it can be changed into a prime (80239218247) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093974 + ... + 1165013.
Almost surely, 280239218240 is an apocalyptic number.
80239218240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80239218240 is an abundant number, since it is smaller than the sum of its proper divisors (181405807872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80239218240 is a wasteful number, since it uses less digits than its factorization.
80239218240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2259044 (or 2259034 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 39.
The spelling of 80239218240 in words is "eighty billion, two hundred thirty-nine million, two hundred eighteen thousand, two hundred forty".
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