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6806320 = 245149571
BaseRepresentation
bin11001111101101100110000
3110210210111221
4121331230300
53220300240
6401514424
7111565333
oct31755460
913723457
106806320
113929764
122342a14
131544011
14c9261a
158e6a4a
hex67db30

6806320 has 40 divisors (see below), whose sum is σ = 15958800. Its totient is φ = 2699520.

The previous prime is 6806309. The next prime is 6806357. The reversal of 6806320 is 236086.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11635 + ... + 12205.

It is an arithmetic number, because the mean of its divisors is an integer number (398970).

Almost surely, 26806320 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 6806320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7979400).

6806320 is an abundant number, since it is smaller than the sum of its proper divisors (9152480).

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

6806320 is a wasteful number, since it uses less digits than its factorization.

6806320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6806320 is about 2608.8924853278. The cubic root of 6806320 is about 189.5123227460.

The spelling of 6806320 in words is "six million, eight hundred six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 149 298 571 596 745 1142 1192 1490 2284 2384 2855 2980 4568 5710 5960 9136 11420 11920 22840 45680 85079 170158 340316 425395 680632 850790 1361264 1701580 3403160 6806320