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6806868 = 2231761547
BaseRepresentation
bin11001111101110101010100
3110210211021020
4121331311110
53220304433
6401521140
7111600045
oct31756524
913724236
106806868
11392a112
1223431b0
131544343
14c928cc
158e6cb3
hex67dd54

6806868 has 48 divisors (see below), whose sum is σ = 17123904. Its totient is φ = 2096640.

The previous prime is 6806837. The next prime is 6806893. The reversal of 6806868 is 8686086.

6806868 is a modest number, since divided by 6868 gives 680 as remainder.

It is a congruent number.

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, 12171 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (356748).

Almost surely, 26806868 is an apocalyptic number.

6806868 is a gapful number since it is divisible by the number (68) 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 6806868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8561952).

6806868 is an abundant number, since it is smaller than the sum of its proper divisors (10317036).

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

6806868 is a wasteful number, since it uses less digits than its factorization.

6806868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 6806868 is about 2608.9975086228. The cubic root of 6806868 is about 189.5174087037.

The spelling of 6806868 in words is "six million, eight hundred six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 61 68 102 122 183 204 244 366 547 732 1037 1094 1641 2074 2188 3111 3282 4148 6222 6564 9299 12444 18598 27897 33367 37196 55794 66734 100101 111588 133468 200202 400404 567239 1134478 1701717 2268956 3403434 6806868