Base | Representation |
---|---|
bin | 1001100100100… |
… | …10000000000000 |
3 | 12121002010220000 |
4 | 10302102000000 |
5 | 131023233132 |
6 | 11544520000 |
7 | 1663311012 |
oct | 462220000 |
9 | 177063800 |
10 | 80289792 |
11 | 41359a00 |
12 | 22a80000 |
13 | 1383226b |
14 | a9401b2 |
15 | 70ae87c |
hex | 4c92000 |
80289792 has 210 divisors, whose sum is σ = 263651619. Its totient is φ = 24330240.
The previous prime is 80289791. The next prime is 80289799. The reversal of 80289792 is 29798208.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 40144896 + 40144896 = 6336^2 + 6336^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=6336.
It is not an unprimeable number, because it can be changed into a prime (80289791) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7299067 + ... + 7299077.
Almost surely, 280289792 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 80289792
80289792 is an abundant number, since it is smaller than the sum of its proper divisors (183361827).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80289792 is an equidigital number, since it uses as much as digits as its factorization.
80289792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60 (or 16 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 45.
The square root of 80289792 is about 8960.4571311959. The cubic root of 80289792 is about 431.4065926596.
The spelling of 80289792 in words is "eighty million, two hundred eighty-nine thousand, seven hundred ninety-two".
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