Base | Representation |
---|---|
bin | 100101010000011110… |
… | …0101101010001011000 |
3 | 21122112000022212102000 |
4 | 1022200330231101120 |
5 | 2302324434224320 |
6 | 100431141041000 |
7 | 5531500026030 |
oct | 1124074552130 |
9 | 248460285360 |
10 | 80009679960 |
11 | 30a28418851 |
12 | 1360b0b6160 |
13 | 7711143ac2 |
14 | 3c301788c0 |
15 | 2134281c90 |
hex | 12a0f2d458 |
80009679960 has 512 divisors, whose sum is σ = 309657600000. Its totient is φ = 17999138304.
The previous prime is 80009679947. The next prime is 80009679977. The reversal of 80009679960 is 6997690008.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 80009679897 and 80009679906.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 160339791 + ... + 160340289.
It is an arithmetic number, because the mean of its divisors is an integer number (604800000).
Almost surely, 280009679960 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80009679960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154828800000).
80009679960 is an abundant number, since it is smaller than the sum of its proper divisors (229647920040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80009679960 is a wasteful number, since it uses less digits than its factorization.
80009679960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 820 (or 810 counting only the distinct ones).
The product of its (nonzero) digits is 1469664, while the sum is 54.
The spelling of 80009679960 in words is "eighty billion, nine million, six hundred seventy-nine thousand, nine hundred sixty".
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