Search a number
-
+
6808320 = 28335197
BaseRepresentation
bin11001111110001100000000
3110210220021000
4121332030000
53220331240
6401532000
7111604221
oct31761400
913726230
106808320
113930212
122344000
131544bbc
14c93248
158e7430
hex67e300

6808320 has 144 divisors (see below), whose sum is σ = 24282720. Its totient is φ = 1806336.

The previous prime is 6808273. The next prime is 6808397. The reversal of 6808320 is 238086.

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 (27) 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 (27).

It is an Ulam number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34462 + ... + 34658.

It is an arithmetic number, because the mean of its divisors is an integer number (168630).

Almost surely, 26808320 is an apocalyptic number.

6808320 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 6808320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12141360).

6808320 is an abundant number, since it is smaller than the sum of its proper divisors (17474400).

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

6808320 is a wasteful number, since it uses less digits than its factorization.

6808320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6808320 is about 2609.2757615860. The cubic root of 6808320 is about 189.5308833156.

The spelling of 6808320 in words is "six million, eight hundred eight thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 197 216 240 256 270 288 320 360 384 394 432 480 540 576 591 640 720 768 788 864 960 985 1080 1152 1182 1280 1440 1576 1728 1773 1920 1970 2160 2304 2364 2880 2955 3152 3456 3546 3840 3940 4320 4728 5319 5760 5910 6304 6912 7092 7880 8640 8865 9456 10638 11520 11820 12608 14184 15760 17280 17730 18912 21276 23640 25216 26595 28368 31520 34560 35460 37824 42552 47280 50432 53190 56736 63040 70920 75648 85104 94560 106380 113472 126080 141840 151296 170208 189120 212760 226944 252160 283680 340416 378240 425520 453888 567360 680832 756480 851040 1134720 1361664 1702080 2269440 3404160 6808320