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28353244470720 = 2635137907287327
BaseRepresentation
bin1100111001001100000010…
…00100001001110111000000
310201101112200100122022000020
412130212001010021313000
512204014421041030340
6140145144541053440
75654311554344541
oct634460104116700
9121345610568006
1028353244470720
1190415a8377484
12321b070257280
1312a89129b5770
147004392124c8
153427edad49d0
hex19c981109dc0

28353244470720 has 224 divisors, whose sum is σ = 96958884169728. Its totient is φ = 6978353221632.

The previous prime is 28353244470709. The next prime is 28353244470739. The reversal of 28353244470720 is 2707444235382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98535697 + ... + 98823023.

It is an arithmetic number, because the mean of its divisors is an integer number (432852161472).

Almost surely, 228353244470720 is an apocalyptic number.

28353244470720 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 28353244470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48479442084864).

28353244470720 is an abundant number, since it is smaller than the sum of its proper divisors (68605639699008).

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

28353244470720 is a wasteful number, since it uses less digits than its factorization.

28353244470720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295267 (or 295257 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 51.

The spelling of 28353244470720 in words is "twenty-eight trillion, three hundred fifty-three billion, two hundred forty-four million, four hundred seventy thousand, seven hundred twenty".