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54439941888 = 28342819343
BaseRepresentation
bin110010101100110111…
…111001011100000000
312012112000100120220000
4302230313321130000
51342443111120023
641002004520000
73635033604513
oct625467713400
9165460316800
1054439941888
11210a6a23112
12a6739b0000
135197878c87
1428c6284d7a
15163956d243
hexcacdf9700

54439941888 has 180 divisors, whose sum is σ = 162925179648. Its totient is φ = 18080133120.

The previous prime is 54439941883. The next prime is 54439941973. The reversal of 54439941888 is 88814993445.

54439941888 is a `hidden beast` number, since 5 + 443 + 9 + 9 + 4 + 188 + 8 = 666.

54439941888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54439941883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5822145 + ... + 5831487.

Almost surely, 254439941888 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 54439941888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81462589824).

54439941888 is an abundant number, since it is smaller than the sum of its proper divisors (108485237760).

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

54439941888 is an equidigital number, since it uses as much as digits as its factorization.

54439941888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9652 (or 9629 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 54439941888 in words is "fifty-four billion, four hundred thirty-nine million, nine hundred forty-one thousand, eight hundred eighty-eight".