Base | Representation |
---|---|
bin | 1001100101001… |
… | …01001101001001 |
3 | 12121020010210112 |
4 | 10302211031021 |
5 | 131033242312 |
6 | 11550324105 |
7 | 1664056241 |
oct | 462451511 |
9 | 177203715 |
10 | 80368457 |
11 | 41403014 |
12 | 22ab9635 |
13 | 1385c000 |
14 | a960b21 |
15 | 70c7d22 |
hex | 4ca5349 |
80368457 has 16 divisors (see below), whose sum is σ = 87993360. Its totient is φ = 73397376.
The previous prime is 80368451. The next prime is 80368459. The reversal of 80368457 is 75486308.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 72097081 + 8271376 = 8491^2 + 2876^2 .
It is not a de Polignac number, because 80368457 - 216 = 80302921 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80368451) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344813 + ... + 345045.
It is an arithmetic number, because the mean of its divisors is an integer number (5499585).
Almost surely, 280368457 is an apocalyptic number.
It is an amenable number.
80368457 is a deficient number, since it is larger than the sum of its proper divisors (7624903).
80368457 is a wasteful number, since it uses less digits than its factorization.
80368457 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 429 (or 403 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 41.
The square root of 80368457 is about 8964.8456205336. The cubic root of 80368457 is about 431.5474388017.
The spelling of 80368457 in words is "eighty million, three hundred sixty-eight thousand, four hundred fifty-seven".
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