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28211000887 is a prime number
BaseRepresentation
bin11010010001100000…
…011011011000110111
32200211001222022221201
4122101200123120313
5430234004012022
620543203353331
72016044356666
oct322140333067
980731868851
1028211000887
1110a67413573
125573982847
132877857344
1415189d6ddd
15b01a45127
hex69181b637

28211000887 has 2 divisors, whose sum is σ = 28211000888. Its totient is φ = 28211000886.

The previous prime is 28211000827. The next prime is 28211000893. The reversal of 28211000887 is 78800011282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28211000887 - 27 = 28211000759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28211000827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14105500443 + 14105500444.

It is an arithmetic number, because the mean of its divisors is an integer number (14105500444).

Almost surely, 228211000887 is an apocalyptic number.

28211000887 is a deficient number, since it is larger than the sum of its proper divisors (1).

28211000887 is an equidigital number, since it uses as much as digits as its factorization.

28211000887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 37.

The spelling of 28211000887 in words is "twenty-eight billion, two hundred eleven million, eight hundred eighty-seven", and thus it is an aban number.