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28357825200 = 2435223631521
BaseRepresentation
bin11010011010010000…
…100001001010110000
32201012022020210001020
4122122100201022300
5431034100401300
621005530335440
72022506352135
oct323220411260
981168223036
1028357825200
1111032286881
1255b4b8a580
13289c0b3933
1415302d658c
15b0e8988a0
hex69a4212b0

28357825200 has 60 divisors (see below), whose sum is σ = 90839570568. Its totient is φ = 7562086400.

The previous prime is 28357825187. The next prime is 28357825253. The reversal of 28357825200 is 252875382.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11814561 + ... + 11816960.

Almost surely, 228357825200 is an apocalyptic number.

28357825200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28357825200 is an abundant number, since it is smaller than the sum of its proper divisors (62481745368).

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

28357825200 is a wasteful number, since it uses less digits than its factorization.

28357825200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23631542 (or 23631531 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 28357825200 in words is "twenty-eight billion, three hundred fifty-seven million, eight hundred twenty-five thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 23631521 47263042 70894563 94526084 118157605 141789126 189052168 236315210 283578252 354472815 378104336 472630420 567156504 590788025 708945630 945260840 1134313008 1181576050 1417891260 1772364075 1890521680 2363152100 2835782520 3544728150 4726304200 5671565040 7089456300 9452608400 14178912600 28357825200