Base | Representation |
---|---|
bin | 100101011110110111… |
… | …0010011110111111100 |
3 | 21200202122201212210100 |
4 | 1022331232103313330 |
5 | 2304322031221210 |
6 | 100551104241100 |
7 | 5546451331560 |
oct | 1127556236774 |
9 | 250678655710 |
10 | 80492445180 |
11 | 31155983474 |
12 | 13724910190 |
13 | 778a1732b4 |
14 | 3c783256a0 |
15 | 21618435c0 |
hex | 12bdb93dfc |
80492445180 has 72 divisors (see below), whose sum is σ = 279040480992. Its totient is φ = 18398272896.
The previous prime is 80492445133. The next prime is 80492445277. The reversal of 80492445180 is 8154429408.
80492445180 is a `hidden beast` number, since 8 + 0 + 4 + 92 + 44 + 518 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31940187 + ... + 31942706.
It is an arithmetic number, because the mean of its divisors is an integer number (3875562236).
Almost surely, 280492445180 is an apocalyptic number.
It is an amenable number.
80492445180 is an abundant number, since it is smaller than the sum of its proper divisors (198548035812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80492445180 is a wasteful number, since it uses less digits than its factorization.
80492445180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63882915 (or 63882910 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 80492445180 in words is "eighty billion, four hundred ninety-two million, four hundred forty-five thousand, one hundred eighty".
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