Base | Representation |
---|---|
bin | 1001100111111… |
… | …00011101001001 |
3 | 12121220022000200 |
4 | 10303330131021 |
5 | 131131211313 |
6 | 12002122413 |
7 | 2000105166 |
oct | 463743511 |
9 | 177808020 |
10 | 80725833 |
11 | 41627571 |
12 | 23050409 |
13 | 13955886 |
14 | aa1506d |
15 | 7148b73 |
hex | 4cfc749 |
80725833 has 12 divisors (see below), whose sum is σ = 117028548. Its totient is φ = 53621280.
The previous prime is 80725807. The next prime is 80725847. The reversal of 80725833 is 33852708.
80725833 is a `hidden beast` number, since 8 + 0 + 72 + 583 + 3 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 30769209 + 49956624 = 5547^2 + 7068^2 .
It is not a de Polignac number, because 80725833 - 26 = 80725769 is a prime.
It is a super-2 number, since 2×807258332 = 13033320227087778, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (80725933) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13698 + ... + 18683.
It is an arithmetic number, because the mean of its divisors is an integer number (9752379).
Almost surely, 280725833 is an apocalyptic number.
It is an amenable number.
80725833 is a deficient number, since it is larger than the sum of its proper divisors (36302715).
80725833 is a wasteful number, since it uses less digits than its factorization.
80725833 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32664 (or 32661 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 36.
The square root of 80725833 is about 8984.7555893302. The cubic root of 80725833 is about 432.1861498429.
The spelling of 80725833 in words is "eighty million, seven hundred twenty-five thousand, eight hundred thirty-three".
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