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28448881608000 = 26353717231632657
BaseRepresentation
bin1100111011111110001010…
…11110111000010101000000
310201201200112110210020201210
412131333011132320111000
512212101302142424000
6140301122532530120
75664235543530630
oct635770536702500
9121650473706653
1028448881608000
119079115009207
123235700a80940
1312b4944665a19
14704d0ca646c0
15345049cbe350
hex19dfc57b8540

28448881608000 has 1792 divisors, whose sum is σ = 119388052832256. Its totient is φ = 5815900569600.

The previous prime is 28448881607987. The next prime is 28448881608067. The reversal of 28448881608000 is 80618884482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 10707142672 + ... + 10707145328.

Almost surely, 228448881608000 is an apocalyptic number.

28448881608000 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 28448881608000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59694026416128).

28448881608000 is an abundant number, since it is smaller than the sum of its proper divisors (90939171224256).

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

28448881608000 is a wasteful number, since it uses less digits than its factorization.

28448881608000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 57.

The spelling of 28448881608000 in words is "twenty-eight trillion, four hundred forty-eight billion, eight hundred eighty-one million, six hundred eight thousand".