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6884345 = 513105913
BaseRepresentation
bin11010010000101111111001
3110221202112202
4122100233321
53230244340
6403315545
7112341656
oct32205771
913852482
106884345
113982346
12237bbb5
1315706a0
14cb2c2d
1590ec15
hex690bf9

6884345 has 8 divisors (see below), whose sum is σ = 8896776. Its totient is φ = 5083776.

The previous prime is 6884341. The next prime is 6884357. The reversal of 6884345 is 5434886.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 6661561 = 472^2 + 2581^2 .

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 6884345 - 22 = 6884341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6884299 and 6884308.

It is not an unprimeable number, because it can be changed into a prime (6884341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52892 + ... + 53021.

It is an arithmetic number, because the mean of its divisors is an integer number (1112097).

Almost surely, 26884345 is an apocalyptic number.

6884345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6884345 is a deficient number, since it is larger than the sum of its proper divisors (2012431).

6884345 is a wasteful number, since it uses less digits than its factorization.

6884345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105931.

The product of its digits is 92160, while the sum is 38.

The square root of 6884345 is about 2623.8035368526. The cubic root of 6884345 is about 190.2337381912.

The spelling of 6884345 in words is "six million, eight hundred eighty-four thousand, three hundred forty-five".

Divisors: 1 5 13 65 105913 529565 1376869 6884345