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28888060520860 = 22519751101226647
BaseRepresentation
bin1101001000110000001101…
…00101011110100110011100
310210021200010121101121102021
412210120012211132212130
512241300221443131420
6141234554121105524
76041044032641452
oct644300645364634
9123250117347367
1028888060520860
1192283a3065732
1232a68490282a4
131317194bcc528
1471c29233a9d2
153516a105e7aa
hex1a460695e99c

28888060520860 has 48 divisors (see below), whose sum is σ = 63942849008640. Its totient is φ = 10932477768000.

The previous prime is 28888060520789. The next prime is 28888060520911. The reversal of 28888060520860 is 6802506088882.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50327944 + ... + 50898703.

It is an arithmetic number, because the mean of its divisors is an integer number (1332142687680).

Almost surely, 228888060520860 is an apocalyptic number.

28888060520860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28888060520860 is an abundant number, since it is smaller than the sum of its proper divisors (35054788487780).

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

28888060520860 is a wasteful number, since it uses less digits than its factorization.

28888060520860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101227426 (or 101227424 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 61.

The spelling of 28888060520860 in words is "twenty-eight trillion, eight hundred eighty-eight billion, sixty million, five hundred twenty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 751 1502 3004 3755 7510 14269 15020 28538 57076 71345 142690 285380 101226647 202453294 404906588 506133235 1012266470 1923306293 2024532940 3846612586 7693225172 9616531465 19233062930 38466125860 76021211897 152042423794 304084847588 380106059485 760212118970 1444403026043 1520424237940 2888806052086 5777612104172 7222015130215 14444030260430 28888060520860