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28838853321 = 3311567197891
BaseRepresentation
bin11010110110111011…
…011111101011001001
32202102211101112120120
4122312323133223021
5433030221301241
621125352413453
72040440131365
oct326673375311
982384345516
1028838853321
1111259865383
12570a0a7289
132947955565
1415781502a5
15b3bc15666
hex6b6edfac9

28838853321 has 16 divisors (see below), whose sum is σ = 39717715968. Its totient is φ = 18593744400.

The previous prime is 28838853317. The next prime is 28838853361. The reversal of 28838853321 is 12335883882.

It is not a de Polignac number, because 28838853321 - 22 = 28838853317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28838853361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46786 + ... + 244676.

It is an arithmetic number, because the mean of its divisors is an integer number (2482357248).

Almost surely, 228838853321 is an apocalyptic number.

It is an amenable number.

28838853321 is a deficient number, since it is larger than the sum of its proper divisors (10878862647).

28838853321 is a wasteful number, since it uses less digits than its factorization.

28838853321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199492.

The product of its digits is 2211840, while the sum is 51.

The spelling of 28838853321 in words is "twenty-eight billion, eight hundred thirty-eight million, eight hundred fifty-three thousand, three hundred twenty-one".

Divisors: 1 3 31 93 1567 4701 48577 145731 197891 593673 6134621 18403863 310095197 930285591 9612951107 28838853321