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9828385 = 57280811
BaseRepresentation
bin100101011111…
…100000100001
3200111100000021
4211133200201
510004002020
6550353441
7146353120
oct45374041
920440007
109828385
115603236
12335b881
132061718
14143bab7
15ce21aa
hex95f821

9828385 has 8 divisors (see below), whose sum is σ = 13478976. Its totient is φ = 6739440.

The previous prime is 9828367. The next prime is 9828391. The reversal of 9828385 is 5838289.

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

It is not a de Polignac number, because 9828385 - 27 = 9828257 is a prime.

9828385 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 140371 + ... + 140440.

It is an arithmetic number, because the mean of its divisors is an integer number (1684872).

Almost surely, 29828385 is an apocalyptic number.

It is an amenable number.

9828385 is a deficient number, since it is larger than the sum of its proper divisors (3650591).

9828385 is a wasteful number, since it uses less digits than its factorization.

9828385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280823.

The product of its digits is 138240, while the sum is 43.

The square root of 9828385 is about 3135.0255182375. The cubic root of 9828385 is about 214.2039064442.

The spelling of 9828385 in words is "nine million, eight hundred twenty-eight thousand, three hundred eighty-five".

Divisors: 1 5 7 35 280811 1404055 1965677 9828385