Base | Representation |
---|---|
bin | 1001100110101… |
… | …11110111111001 |
3 | 12121121200111001 |
4 | 10303113313321 |
5 | 131111412433 |
6 | 11555005001 |
7 | 1665612301 |
oct | 463276771 |
9 | 177550431 |
10 | 80575993 |
11 | 41534a33 |
12 | 22b99761 |
13 | 13902604 |
14 | a9b6601 |
15 | 711957d |
hex | 4cd7df9 |
80575993 has 2 divisors, whose sum is σ = 80575994. Its totient is φ = 80575992.
The previous prime is 80575987. The next prime is 80576003. The reversal of 80575993 is 39957508.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 59166864 + 21409129 = 7692^2 + 4627^2 .
It is a cyclic number.
It is not a de Polignac number, because 80575993 - 217 = 80444921 is a prime.
It is not a weakly prime, because it can be changed into another prime (80575093) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40287996 + 40287997.
It is an arithmetic number, because the mean of its divisors is an integer number (40287997).
Almost surely, 280575993 is an apocalyptic number.
It is an amenable number.
80575993 is a deficient number, since it is larger than the sum of its proper divisors (1).
80575993 is an equidigital number, since it uses as much as digits as its factorization.
80575993 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 340200, while the sum is 46.
The square root of 80575993 is about 8976.4131478002. The cubic root of 80575993 is about 431.9185821215.
The spelling of 80575993 in words is "eighty million, five hundred seventy-five thousand, nine hundred ninety-three".
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