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28107524480 = 275743592473
BaseRepresentation
bin11010001011010101…
…101100100110000000
32200112212021012000012
4122023111230212000
5430031011240410
620525025444052
72013350005340
oct321325544600
980485235005
1028107524480
1110a13a68182
1255451a0628
13285c2973b9
141508d7cd20
15ae7905605
hex68b56c980

28107524480 has 256 divisors, whose sum is σ = 79943846400. Its totient is φ = 9249472512.

The previous prime is 28107524479. The next prime is 28107524491. The reversal of 28107524480 is 8442570182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11364524 + ... + 11366996.

It is an arithmetic number, because the mean of its divisors is an integer number (312280650).

Almost surely, 228107524480 is an apocalyptic number.

28107524480 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 28107524480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39971923200).

28107524480 is an abundant number, since it is smaller than the sum of its proper divisors (51836321920).

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

28107524480 is a wasteful number, since it uses less digits than its factorization.

28107524480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2589 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The spelling of 28107524480 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-four thousand, four hundred eighty".