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580320 = 253251331
BaseRepresentation
bin10001101101011100000
31002111001100
42031223200
5122032240
620234400
74634616
oct2155340
91074040
10580320
11367004
1223ba00
131741b0
141116b6
15b6e30
hex8dae0

580320 has 144 divisors (see below), whose sum is σ = 2201472. Its totient is φ = 138240.

The previous prime is 580303. The next prime is 580331. The reversal of 580320 is 23085.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 580293 and 580302.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 580320.

It is an unprimeable number.

580320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18705 + ... + 18735.

It is an arithmetic number, because the mean of its divisors is an integer number (15288).

2580320 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 580320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100736).

580320 is an abundant number, since it is smaller than the sum of its proper divisors (1621152).

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

580320 is a wasteful number, since it uses less digits than its factorization.

580320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 580320 is about 761.7873719090. The cubic root of 580320 is about 83.4108434394.

It can be divided in two parts, 580 and 320, that added together give a square (900 = 302).

The spelling of 580320 in words is "five hundred eighty thousand, three hundred twenty".