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80528857583 is a prime number
BaseRepresentation
bin100101011111111100…
…1001101100111101111
321200212012020211012212
41022333321031213233
52304410341420313
6100554444521035
75550402665306
oct1127771154757
9250765224185
1080528857583
1131174493669
1213734b5017b
137794881bb5
143c7d0c343d
152164b373a8
hex12bfe4d9ef

80528857583 has 2 divisors, whose sum is σ = 80528857584. Its totient is φ = 80528857582.

The previous prime is 80528857529. The next prime is 80528857589. The reversal of 80528857583 is 38575882508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80528857583 - 224 = 80512080367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80528857589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40264428791 + 40264428792.

It is an arithmetic number, because the mean of its divisors is an integer number (40264428792).

Almost surely, 280528857583 is an apocalyptic number.

80528857583 is a deficient number, since it is larger than the sum of its proper divisors (1).

80528857583 is an equidigital number, since it uses as much as digits as its factorization.

80528857583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504000, while the sum is 59.

The spelling of 80528857583 in words is "eighty billion, five hundred twenty-eight million, eight hundred fifty-seven thousand, five hundred eighty-three".