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2163085 = 53311307
BaseRepresentation
bin1000010000000110001101
311001220012021
420100012031
51023204320
6114210141
724246241
oct10200615
94056167
102163085
111248181
12883951
135a9742
14404421
152cadaa
hex21018d

2163085 has 8 divisors (see below), whose sum is σ = 2605536. Its totient is φ = 1723920.

The previous prime is 2163079. The next prime is 2163101. The reversal of 2163085 is 5803612.

It is a happy number.

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

It is not a de Polignac number, because 2163085 - 27 = 2162957 is a prime.

It is a d-powerful number, because it can be written as 215 + 1 + 62 + 311 + 0 + 8 + 59 .

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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (325692).

22163085 is an apocalyptic number.

It is an amenable number.

2163085 is a deficient number, since it is larger than the sum of its proper divisors (442451).

2163085 is a wasteful number, since it uses less digits than its factorization.

2163085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2163085 is about 1470.7430095023. The cubic root of 2163085 is about 129.3275931546.

Adding to 2163085 its reverse (5803612), we get a palindrome (7966697).

The spelling of 2163085 in words is "two million, one hundred sixty-three thousand, eighty-five".

Divisors: 1 5 331 1307 1655 6535 432617 2163085