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2189541142880 = 25572131929127307
BaseRepresentation
bin11111110111001010110…
…100100111000101100000
321202022120212221112200222
4133313022310213011200
5241333140013033010
64353510013302212
7314121604431200
oct37671264470540
97668525845628
102189541142880
11774640991913
122b4420a94968
1312b61bab7aa0
1477d8d8c6400
153be4d156355
hex1fdcad27160

2189541142880 has 1152 divisors, whose sum is σ = 7135207833600. Its totient is φ = 626805817344.

The previous prime is 2189541142879. The next prime is 2189541142949. The reversal of 2189541142880 is 882411459812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7132055687 + ... + 7132055993.

It is an arithmetic number, because the mean of its divisors is an integer number (6193756800).

Almost surely, 22189541142880 is an apocalyptic number.

2189541142880 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 2189541142880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3567603916800).

2189541142880 is an abundant number, since it is smaller than the sum of its proper divisors (4945666690720).

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

2189541142880 is a wasteful number, since it uses less digits than its factorization.

2189541142880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 53.

The spelling of 2189541142880 in words is "two trillion, one hundred eighty-nine billion, five hundred forty-one million, one hundred forty-two thousand, eight hundred eighty".