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530310240 = 25345172983
BaseRepresentation
bin11111100110111…
…110010001100000
31100221212112220000
4133212332101200
52041224411430
6124342220000
716066363665
oct3746762140
91327775800
10530310240
11252389a29
12129724600
1385b38355
1450605a6c
1531853e60
hex1f9be460

530310240 has 480 divisors, whose sum is σ = 2074675680. Its totient is φ = 126959616.

The previous prime is 530310239. The next prime is 530310281. The reversal of 530310240 is 42013035.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6389239 + ... + 6389321.

It is an arithmetic number, because the mean of its divisors is an integer number (4322241).

Almost surely, 2530310240 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 530310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037337840).

530310240 is an abundant number, since it is smaller than the sum of its proper divisors (1544365440).

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

530310240 is a wasteful number, since it uses less digits than its factorization.

530310240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 530310240 is about 23028.4658629271. The cubic root of 530310240 is about 809.4251064720.

Adding to 530310240 its reverse (42013035), we get a palindrome (572323275).

The spelling of 530310240 in words is "five hundred thirty million, three hundred ten thousand, two hundred forty".