Base | Representation |
---|---|
bin | 100101010111011000… |
… | …0111101000000000000 |
3 | 21200010011111111211211 |
4 | 1022232300331000000 |
5 | 2303313304322210 |
6 | 100510141215504 |
7 | 5540313215665 |
oct | 1125660750000 |
9 | 250104444754 |
10 | 80241479680 |
11 | 3103725036a |
12 | 13674861594 |
13 | 774a1832bb |
14 | 3c52c77a6c |
15 | 21497bd38a |
hex | 12aec3d000 |
80241479680 has 208 divisors, whose sum is σ = 209426832720. Its totient is φ = 29387390976.
The previous prime is 80241479657. The next prime is 80241479693. The reversal of 80241479680 is 8697414208.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 7332839424 + 72908640256 = 85632^2 + 270016^2 .
It is a super-2 number, since 2×802414796802 (a number of 23 digits) contains 22 as substring.
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, 12878806 + ... + 12885034.
Almost surely, 280241479680 is an apocalyptic number.
80241479680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80241479680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104713416360).
80241479680 is an abundant number, since it is smaller than the sum of its proper divisors (129185353040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80241479680 is a wasteful number, since it uses less digits than its factorization.
80241479680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6312 (or 6290 counting only the distinct ones).
The product of its (nonzero) digits is 774144, while the sum is 49.
The spelling of 80241479680 in words is "eighty billion, two hundred forty-one million, four hundred seventy-nine thousand, six hundred eighty".
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