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489687120 = 24345135813
BaseRepresentation
bin11101001100000…
…000100001010000
31021010102200110000
4131030000201100
52000324441440
6120331410000
715064162146
oct3514004120
91233380400
10489687120
112314631aa
12117bb3900
137a5b3cc0
144906d596
152cecc730
hex1d300850

489687120 has 200 divisors, whose sum is σ = 1831898376. Its totient is φ = 120517632.

The previous prime is 489687113. The next prime is 489687151. The reversal of 489687120 is 21786984.

It can be written as a sum of positive squares in 4 ways, for example, as 24681024 + 465006096 = 4968^2 + 21564^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81334 + ... + 87146.

Almost surely, 2489687120 is an apocalyptic number.

489687120 is a gapful number since it is divisible by the number (40) 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 489687120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915949188).

489687120 is an abundant number, since it is smaller than the sum of its proper divisors (1342211256).

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

489687120 is a wasteful number, since it uses less digits than its factorization.

489687120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851 (or 5836 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 489687120 is about 22128.8752538397. The cubic root of 489687120 is about 788.2056803746.

The spelling of 489687120 in words is "four hundred eighty-nine million, six hundred eighty-seven thousand, one hundred twenty".