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28850809663200 = 25352716069106871
BaseRepresentation
bin1101000111101010110100…
…10000101110111011100000
310210011002222112022222020110
412203311122100232323200
512240142424233210300
6141205513510011320
76035254646610060
oct643653220567340
9123132875288213
1028850809663200
119213617a08a58
12329b591946b40
13131380957b615
1471a55ad153a0
15350720ab8550
hex1a3d5a42eee0

28850809663200 has 288 divisors, whose sum is σ = 107332695267840. Its totient is φ = 6593998694400.

The previous prime is 28850809663121. The next prime is 28850809663219. The reversal of 28850809663200 is 236690805882.

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, 269905765 + ... + 270012635.

It is an arithmetic number, because the mean of its divisors is an integer number (372682969680).

Almost surely, 228850809663200 is an apocalyptic number.

28850809663200 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 28850809663200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53666347633920).

28850809663200 is an abundant number, since it is smaller than the sum of its proper divisors (78481885604640).

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

28850809663200 is a wasteful number, since it uses less digits than its factorization.

28850809663200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122970 (or 122957 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 28850809663200 in words is "twenty-eight trillion, eight hundred fifty billion, eight hundred nine million, six hundred sixty-three thousand, two hundred".