Search a number
-
+
6864480 = 253357227
BaseRepresentation
bin11010001011111001100000
3110220202022000
4122023321200
53224130410
6403044000
7112230030
oct32137140
913822260
106864480
113969427
122370600
13156462c
14ca98c0
15908dc0
hex68be60

6864480 has 192 divisors, whose sum is σ = 27578880. Its totient is φ = 1562112.

The previous prime is 6864479. The next prime is 6864497. The reversal of 6864480 is 844686.

6864480 is a `hidden beast` number, since 6 + 8 + 644 + 8 + 0 = 666.

6864480 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30127 + ... + 30353.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

Almost surely, 26864480 is an apocalyptic number.

6864480 is a gapful number since it is divisible by the number (60) 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 6864480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13789440).

6864480 is an abundant number, since it is smaller than the sum of its proper divisors (20714400).

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

6864480 is a wasteful number, since it uses less digits than its factorization.

6864480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 6864480 is about 2620.0152671311. The cubic root of 6864480 is about 190.0505867150.

The spelling of 6864480 in words is "six million, eight hundred sixty-four thousand, four hundred eighty".