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80028807427 is a prime number
BaseRepresentation
bin100101010001000010…
…1101011000100000011
321122120100022122100201
41022202011223010003
52302344333314202
6100433103030031
75532121432162
oct1124205530403
9248510278321
1080028807427
1130a381a2578
121361559b317
1377150b002a
143c329173d9
152135cae387
hex12a216b103

80028807427 has 2 divisors, whose sum is σ = 80028807428. Its totient is φ = 80028807426.

The previous prime is 80028807403. The next prime is 80028807449. The reversal of 80028807427 is 72470882008.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80028807427 is a prime.

It is a super-2 number, since 2×800288074272 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80028807457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40014403713 + 40014403714.

It is an arithmetic number, because the mean of its divisors is an integer number (40014403714).

Almost surely, 280028807427 is an apocalyptic number.

80028807427 is a deficient number, since it is larger than the sum of its proper divisors (1).

80028807427 is an equidigital number, since it uses as much as digits as its factorization.

80028807427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 401408, while the sum is 46.

The spelling of 80028807427 in words is "eighty billion, twenty-eight million, eight hundred seven thousand, four hundred twenty-seven".