Base | Representation |
---|---|
bin | 1001101001010… |
… | …10011001011101 |
3 | 12122020212011022 |
4 | 10310222121131 |
5 | 131203222023 |
6 | 12010133525 |
7 | 2001520625 |
oct | 464523135 |
9 | 178225138 |
10 | 80914013 |
11 | 41745994 |
12 | 231212a5 |
13 | 139c041b |
14 | aa63885 |
15 | 71847c8 |
hex | 4d2a65d |
80914013 has 2 divisors, whose sum is σ = 80914014. Its totient is φ = 80914012.
The previous prime is 80913991. The next prime is 80914021. The reversal of 80914013 is 31041908.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 79887844 + 1026169 = 8938^2 + 1013^2 .
It is a cyclic number.
It is not a de Polignac number, because 80914013 - 214 = 80897629 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80914073) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40457006 + 40457007.
It is an arithmetic number, because the mean of its divisors is an integer number (40457007).
Almost surely, 280914013 is an apocalyptic number.
It is an amenable number.
80914013 is a deficient number, since it is larger than the sum of its proper divisors (1).
80914013 is an equidigital number, since it uses as much as digits as its factorization.
80914013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 26.
The square root of 80914013 is about 8995.2216759789. The cubic root of 80914013 is about 432.5217122983.
The spelling of 80914013 in words is "eighty million, nine hundred fourteen thousand, thirteen".
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