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28585119772 = 22111934192727
BaseRepresentation
bin11010100111110011…
…100101000000011100
32201210010221112120201
4122213303211000130
5432020242313042
621044250153244
72031236336416
oct324763450034
981703845521
1028585119772
1111139611630
125659122824
132907206671
1415525819b6
15b247e51b7
hex6a7ce501c

28585119772 has 24 divisors (see below), whose sum is σ = 57443783040. Its totient is φ = 12309381360.

The previous prime is 28585119767. The next prime is 28585119803. The reversal of 28585119772 is 27791158582.

It is a happy number.

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, 17095528 + ... + 17097199.

It is an arithmetic number, because the mean of its divisors is an integer number (2393490960).

Almost surely, 228585119772 is an apocalyptic number.

28585119772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28585119772 is an abundant number, since it is smaller than the sum of its proper divisors (28858663268).

28585119772 is a wasteful number, since it uses less digits than its factorization.

28585119772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34192761 (or 34192759 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 55.

The spelling of 28585119772 in words is "twenty-eight billion, five hundred eighty-five million, one hundred nineteen thousand, seven hundred seventy-two".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 34192727 68385454 136770908 376119997 649661813 752239994 1299323626 1504479988 2598647252 7146279943 14292559886 28585119772