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80015959291 is a prime number
BaseRepresentation
bin100101010000101010…
…0101010010011111011
321122112110010220000211
41022201110222103323
52302333041144131
6100431523411551
75531604301102
oct1124124522373
9248473126024
1080015959291
1130a30a17584
1213611223bb7
137712531c98
143c30d31039
152134ac25b1
hex12a152a4fb

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".