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28872355327882 = 2112711680383851
BaseRepresentation
bin1101001000010010111100…
…11110111010111110001010
310210020011121002022010211021
412210021132132322332022
512241021040430443012
6141223435452223054
76036646611002023
oct644113636727612
9123204532263737
1028872355327882
119221773977800
1232a37a546aa8a
131315861246531
1471b6025c9c4a
1535108239e007
hex1a425e7baf8a

28872355327882 has 24 divisors (see below), whose sum is σ = 48274067300256. Its totient is φ = 12938955645000.

The previous prime is 28872355327843. The next prime is 28872355327969.

28872355327882 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×288723553278822 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 840174744 + ... + 840209107.

It is an arithmetic number, because the mean of its divisors is an integer number (2011419470844).

Almost surely, 228872355327882 is an apocalyptic number.

28872355327882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28872355327882 is a deficient number, since it is larger than the sum of its proper divisors (19401711972374).

28872355327882 is a wasteful number, since it uses less digits than its factorization.

28872355327882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680383946 (or 1680383935 counting only the distinct ones).

The product of its digits is 722534400, while the sum is 70.

The spelling of 28872355327882 in words is "twenty-eight trillion, eight hundred seventy-two billion, three hundred fifty-five million, three hundred twenty-seven thousand, eight hundred eighty-two".

Divisors: 1 2 11 22 71 121 142 242 781 1562 8591 17182 1680383851 3360767702 18484222361 36968444722 119307253421 203326445971 238614506842 406652891942 1312379787631 2624759575262 14436177663941 28872355327882