Base | Representation |
---|---|
bin | 1001101001101… |
… | …11011110100101 |
3 | 12122100120122121 |
4 | 10310313132211 |
5 | 131211430324 |
6 | 12011225541 |
7 | 2002133053 |
oct | 464673645 |
9 | 178316577 |
10 | 80967589 |
11 | 4178216a |
12 | 231482b1 |
13 | 13a0b921 |
14 | aa791d3 |
15 | 71955e4 |
hex | 4d377a5 |
80967589 has 2 divisors, whose sum is σ = 80967590. Its totient is φ = 80967588.
The previous prime is 80967587. The next prime is 80967611. The reversal of 80967589 is 98576908.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 70274689 + 10692900 = 8383^2 + 3270^2 .
It is a cyclic number.
It is not a de Polignac number, because 80967589 - 21 = 80967587 is a prime.
Together with 80967587, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80967587) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40483794 + 40483795.
It is an arithmetic number, because the mean of its divisors is an integer number (40483795).
Almost surely, 280967589 is an apocalyptic number.
It is an amenable number.
80967589 is a deficient number, since it is larger than the sum of its proper divisors (1).
80967589 is an equidigital number, since it uses as much as digits as its factorization.
80967589 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1088640, while the sum is 52.
The square root of 80967589 is about 8998.1992087306. The cubic root of 80967589 is about 432.6171538244.
The spelling of 80967589 in words is "eighty million, nine hundred sixty-seven thousand, five hundred eighty-nine".
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