Base | Representation |
---|---|
bin | 1001100100110… |
… | …00001100010111 |
3 | 12121010102200112 |
4 | 10302120030113 |
5 | 131030041114 |
6 | 11545233235 |
7 | 1663444661 |
oct | 462301427 |
9 | 177112615 |
10 | 80315159 |
11 | 41376a71 |
12 | 22a9281b |
13 | 13840982 |
14 | a949531 |
15 | 70b713e |
hex | 4c98317 |
80315159 has 2 divisors, whose sum is σ = 80315160. Its totient is φ = 80315158.
The previous prime is 80315083. The next prime is 80315161. The reversal of 80315159 is 95151308.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 80315159 - 28 = 80314903 is a prime.
It is a Sophie Germain prime.
Together with 80315161, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80315359) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40157579 + 40157580.
It is an arithmetic number, because the mean of its divisors is an integer number (40157580).
Almost surely, 280315159 is an apocalyptic number.
80315159 is a deficient number, since it is larger than the sum of its proper divisors (1).
80315159 is an equidigital number, since it uses as much as digits as its factorization.
80315159 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5400, while the sum is 32.
The square root of 80315159 is about 8961.8725163885. The cubic root of 80315159 is about 431.4520211774.
The spelling of 80315159 in words is "eighty million, three hundred fifteen thousand, one hundred fifty-nine".
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