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6803985 = 35453599
BaseRepresentation
bin11001111101001000010001
3110210200022110
4121331020101
53220211420
6401455533
7111555456
oct31751021
913720273
106803985
113927a31
1223415a9
131542c36
14c9182d
158e5ee0
hex67d211

6803985 has 8 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 3628784.

The previous prime is 6803983. The next prime is 6803987. The reversal of 6803985 is 5893086.

It is an interprime number because it is at equal distance from previous prime (6803983) and next prime (6803987).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6803985 - 21 = 6803983 is a prime.

It is a super-4 number, since 4×68039854 (a number of 28 digits) contains 4444 as substring.

6803985 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6803983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 226785 + ... + 226814.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 26803985 is an apocalyptic number.

It is an amenable number.

6803985 is a deficient number, since it is larger than the sum of its proper divisors (4082415).

6803985 is a wasteful number, since it uses less digits than its factorization.

6803985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453607.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 6803985 is about 2608.4449390394. Note that the first 3 decimals coincide. The cubic root of 6803985 is about 189.4906486800.

The spelling of 6803985 in words is "six million, eight hundred three thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 453599 1360797 2267995 6803985