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489863086944 = 25372112860641
BaseRepresentation
bin1110010000011100001…
…11011000001101100000
31201211102101211011201020
413020032013120031200
531011214422240234
61013012350005440
750251156352100
oct7101607301540
91654371734636
10489863086944
11179827a3a700
127ab321a6880
1337269c9437a
14199d0c21200
15cb20c2d549
hex720e1d8360

489863086944 has 216 divisors, whose sum is σ = 1644180804504. Its totient is φ = 127237017600.

The previous prime is 489863086943. The next prime is 489863086963. The reversal of 489863086944 is 449680368984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489863086943) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 138864 + ... + 999504.

It is an arithmetic number, because the mean of its divisors is an integer number (7611948169).

Almost surely, 2489863086944 is an apocalyptic number.

489863086944 is a gapful number since it is divisible by the number (44) 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 489863086944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822090402252).

489863086944 is an abundant number, since it is smaller than the sum of its proper divisors (1154317717560).

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

489863086944 is a wasteful number, since it uses less digits than its factorization.

489863086944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860690 (or 860664 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 69.

The spelling of 489863086944 in words is "four hundred eighty-nine billion, eight hundred sixty-three million, eighty-six thousand, nine hundred forty-four".