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6868806 = 237163543
BaseRepresentation
bin11010001100111101000110
3110220222020020
4122030331012
53224300211
6403120010
7112245450
oct32147506
913828206
106868806
1139716aa
122373006
1315665a9
14cab2d0
1590a306
hex68cf46

6868806 has 16 divisors (see below), whose sum is σ = 15700224. Its totient is φ = 1962504.

The previous prime is 6868801. The next prime is 6868811. The reversal of 6868806 is 6088686.

6868806 is digitally balanced in base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6868801) and next prime (6868811).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 163543 = 6868806 / (6 + 8 + 6 + 8 + 8 + 0 + 6).

6868806 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81730 + ... + 81813.

It is an arithmetic number, because the mean of its divisors is an integer number (981264).

Almost surely, 26868806 is an apocalyptic number.

6868806 is an abundant number, since it is smaller than the sum of its proper divisors (8831418).

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

6868806 is a wasteful number, since it uses less digits than its factorization.

6868806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163555.

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

The square root of 6868806 is about 2620.8407048121. The cubic root of 6868806 is about 190.0905016680.

The spelling of 6868806 in words is "six million, eight hundred sixty-eight thousand, eight hundred six".

Divisors: 1 2 3 6 7 14 21 42 163543 327086 490629 981258 1144801 2289602 3434403 6868806