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28899840143 is a prime number
BaseRepresentation
bin11010111010100100…
…001001000010001111
32202121002010222202202
4122322210021002033
5433141324341033
621135411512115
72042110405466
oct327244110217
982532128682
1028899840143
111129022a709
1257265b863b
132957489735
1415822a79dd
15b422608e8
hex6ba90908f

28899840143 has 2 divisors, whose sum is σ = 28899840144. Its totient is φ = 28899840142.

The previous prime is 28899840139. The next prime is 28899840247. The reversal of 28899840143 is 34104899882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28899840143 - 22 = 28899840139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28899840103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14449920071 + 14449920072.

It is an arithmetic number, because the mean of its divisors is an integer number (14449920072).

Almost surely, 228899840143 is an apocalyptic number.

28899840143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28899840143 is an equidigital number, since it uses as much as digits as its factorization.

28899840143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 28899840143 in words is "twenty-eight billion, eight hundred ninety-nine million, eight hundred forty thousand, one hundred forty-three".