Base | Representation |
---|---|
bin | 100101010000101010… |
… | …0101010010011111011 |
3 | 21122112110010220000211 |
4 | 1022201110222103323 |
5 | 2302333041144131 |
6 | 100431523411551 |
7 | 5531604301102 |
oct | 1124124522373 |
9 | 248473126024 |
10 | 80015959291 |
11 | 30a30a17584 |
12 | 13611223bb7 |
13 | 7712531c98 |
14 | 3c30d31039 |
15 | 2134ac25b1 |
hex | 12a152a4fb |
80015959291 has 2 divisors, whose sum is σ = 80015959292. Its totient is φ = 80015959290.
The previous prime is 80015959271. The next prime is 80015959367. The reversal of 80015959291 is 19295951008.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80015959291 is a prime.
It is not a weakly prime, because it can be changed into another prime (80015959271) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40007979645 + 40007979646.
It is an arithmetic number, because the mean of its divisors is an integer number (40007979646).
Almost surely, 280015959291 is an apocalyptic number.
80015959291 is a deficient number, since it is larger than the sum of its proper divisors (1).
80015959291 is an equidigital number, since it uses as much as digits as its factorization.
80015959291 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 291600, while the sum is 49.
The spelling of 80015959291 in words is "eighty billion, fifteen million, nine hundred fifty-nine thousand, two hundred ninety-one".
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