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72025802784 = 253213193263379
BaseRepresentation
bin100001100010100010…
…0101000100000100000
320212220121020212212100
41003011010220200200
52140002101142114
653031014530400
75126603136135
oct1030504504040
9225817225770
1072025802784
1128600762751
1211b61366a00
136a3b057420
1436b3aaa58c
151d183bd909
hex10c5128820

72025802784 has 288 divisors, whose sum is σ = 223152209280. Its totient is φ = 21905178624.

The previous prime is 72025802671. The next prime is 72025802837. The reversal of 72025802784 is 48720852027.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190041507 + ... + 190041885.

It is an arithmetic number, because the mean of its divisors is an integer number (774834060).

Almost surely, 272025802784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72025802784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111576104640).

72025802784 is an abundant number, since it is smaller than the sum of its proper divisors (151126406496).

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

72025802784 is a wasteful number, since it uses less digits than its factorization.

72025802784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 72025802784 in words is "seventy-two billion, twenty-five million, eight hundred two thousand, seven hundred eighty-four".