Base | Representation |
---|---|
bin | 100101100101100000… |
… | …0100101001101010100 |
3 | 21201100012011001001110 |
4 | 1023023000211031110 |
5 | 2310301111313310 |
6 | 101025145455020 |
7 | 5555126025552 |
oct | 1131300451524 |
9 | 251305131043 |
10 | 80715338580 |
11 | 3125a782598 |
12 | 137874a1470 |
13 | 77c43b4996 |
14 | 3c99b86bd2 |
15 | 21761c0d20 |
hex | 12cb025354 |
80715338580 has 48 divisors (see below), whose sum is σ = 226017288000. Its totient is φ = 21522724608.
The previous prime is 80715338579. The next prime is 80715338591. The reversal of 80715338580 is 8583351708.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219171 + ... + 1283669.
It is an arithmetic number, because the mean of its divisors is an integer number (4708693500).
Almost surely, 280715338580 is an apocalyptic number.
It is an amenable number.
80715338580 is an abundant number, since it is smaller than the sum of its proper divisors (145301949420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80715338580 is a wasteful number, since it uses less digits than its factorization.
80715338580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85368 (or 85366 counting only the distinct ones).
The product of its (nonzero) digits is 806400, while the sum is 48.
The spelling of 80715338580 in words is "eighty billion, seven hundred fifteen million, three hundred thirty-eight thousand, five hundred eighty".
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