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289250183040 = 27357213713331
BaseRepresentation
bin1000011010110001010…
…01111000011110000000
31000122121100020202010020
410031120221320132000
514214341021324130
6340514003133440
726616613663200
oct4153051703600
91018540222106
10289250183040
11101741207755
1248085374280
13213789ac080
14dddd598400
1577cda8ce10
hex4358a78780

289250183040 has 768 divisors, whose sum is σ = 1171633559040. Its totient is φ = 60150988800.

The previous prime is 289250183023. The next prime is 289250183051. The reversal of 289250183040 is 40381052982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 289250182983 and 289250183001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 86834175 + ... + 86837505.

It is an arithmetic number, because the mean of its divisors is an integer number (1525564530).

Almost surely, 2289250183040 is an apocalyptic number.

289250183040 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 289250183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585816779520).

289250183040 is an abundant number, since it is smaller than the sum of its proper divisors (882383376000).

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

289250183040 is a wasteful number, since it uses less digits than its factorization.

289250183040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451 (or 3432 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 289250183040 in words is "two hundred eighty-nine billion, two hundred fifty million, one hundred eighty-three thousand, forty".