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28300504840800 = 2535239746496389
BaseRepresentation
bin1100110111101001110011…
…00010011011101001100000
310201012111112211201111122120
412123310321202123221200
512202133413214401200
6140105023351504240
75650433615031543
oct633647142335140
9121174484644576
1028300504840800
1190211a420a975
1232109b1988080
1312a395949505a
146dba74ad485a
1534126397c9a0
hex19bd3989ba60

28300504840800 has 288 divisors, whose sum is σ = 92384501076000. Its totient is φ = 7524994498560.

The previous prime is 28300504840793. The next prime is 28300504840837. The reversal of 28300504840800 is 804840500382.

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 (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4429564006 + ... + 4429570394.

It is an arithmetic number, because the mean of its divisors is an integer number (320779517625).

Almost surely, 228300504840800 is an apocalyptic number.

28300504840800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28300504840800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46192250538000).

28300504840800 is an abundant number, since it is smaller than the sum of its proper divisors (64083996235200).

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

28300504840800 is a wasteful number, since it uses less digits than its factorization.

28300504840800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11445 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 28300504840800 in words is "twenty-eight trillion, three hundred billion, five hundred four million, eight hundred forty thousand, eight hundred".