Search a number
-
+
8364385 = 56132729
BaseRepresentation
bin11111111010000101100001
3120201221210001
4133322011201
54120130020
6455140001
7131044651
oct37720541
916657701
108364385
1147a3317
122974601
13196b253
14117a361
15b0350a
hex7fa161

8364385 has 8 divisors (see below), whose sum is σ = 10057320. Its totient is φ = 6678144.

The previous prime is 8364379. The next prime is 8364431. The reversal of 8364385 is 5834638.

8364385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 529984 + 7834401 = 728^2 + 2799^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8364385 is a prime.

It is an unprimeable number.

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, 1701 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (1257165).

Almost surely, 28364385 is an apocalyptic number.

It is an amenable number.

8364385 is a deficient number, since it is larger than the sum of its proper divisors (1692935).

8364385 is a wasteful number, since it uses less digits than its factorization.

8364385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its digits is 69120, while the sum is 37.

The square root of 8364385 is about 2892.1246515322. The cubic root of 8364385 is about 202.9915710705.

The spelling of 8364385 in words is "eight million, three hundred sixty-four thousand, three hundred eighty-five".

Divisors: 1 5 613 2729 3065 13645 1672877 8364385