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6850445 = 57227961
BaseRepresentation
bin11010001000011110001101
3110220001001012
4122020132031
53223203240
6402455005
7112141100
oct32103615
913801035
106850445
113959928
122364465
13155b124
14ca4737
15904b65
hex68878d

6850445 has 12 divisors (see below), whose sum is σ = 9563004. Its totient is φ = 4697280.

The previous prime is 6850429. The next prime is 6850451. The reversal of 6850445 is 5440586.

It can be written as a sum of positive squares in 2 ways, for example, as 2019241 + 4831204 = 1421^2 + 2198^2 .

It is not a de Polignac number, because 6850445 - 24 = 6850429 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13736 + ... + 14225.

It is an arithmetic number, because the mean of its divisors is an integer number (796917).

Almost surely, 26850445 is an apocalyptic number.

It is an amenable number.

6850445 is a deficient number, since it is larger than the sum of its proper divisors (2712559).

6850445 is a wasteful number, since it uses less digits than its factorization.

6850445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27980 (or 27973 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 6850445 is about 2617.3354771599. The cubic root of 6850445 is about 189.9209735988.

The spelling of 6850445 in words is "six million, eight hundred fifty thousand, four hundred forty-five".

Divisors: 1 5 7 35 49 245 27961 139805 195727 978635 1370089 6850445