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28899839814 = 2343112014883
BaseRepresentation
bin11010111010100100…
…001000111101000110
32202121002010222022120
4122322210020331012
5433141324333224
621135411510410
72042110404516
oct327244107506
982532128276
1028899839814
111129022a43a
1257265b8406
132957489541
1415822a7846
15b42260779
hex6ba908f46

28899839814 has 16 divisors (see below), whose sum is σ = 59143858752. Its totient is φ = 9409250088.

The previous prime is 28899839791. The next prime is 28899839849. The reversal of 28899839814 is 41893899882.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 56007184 + ... + 56007699.

It is an arithmetic number, because the mean of its divisors is an integer number (3696491172).

Almost surely, 228899839814 is an apocalyptic number.

28899839814 is an abundant number, since it is smaller than the sum of its proper divisors (30244018938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28899839814 is a wasteful number, since it uses less digits than its factorization.

28899839814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112014931.

The product of its digits is 71663616, while the sum is 69.

The spelling of 28899839814 in words is "twenty-eight billion, eight hundred ninety-nine million, eight hundred thirty-nine thousand, eight hundred fourteen".

Divisors: 1 2 3 6 43 86 129 258 112014883 224029766 336044649 672089298 4816639969 9633279938 14449919907 28899839814