Search a number
-
+
2017285 = 53131289
BaseRepresentation
bin111101100100000000101
310210111012021
413230200011
51004023120
6111123141
723101204
oct7544005
93714167
102017285
111158686
128134b1
1355827a
143a723b
1529caaa
hex1ec805

2017285 has 8 divisors (see below), whose sum is σ = 2430360. Its totient is φ = 1607424.

The previous prime is 2017283. The next prime is 2017289. The reversal of 2017285 is 5827102.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 1979649 = 194^2 + 1407^2 .

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 2017285 - 21 = 2017283 is a prime.

2017285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2017283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921 + ... + 2209.

It is an arithmetic number, because the mean of its divisors is an integer number (303795).

22017285 is an apocalyptic number.

It is an amenable number.

2017285 is a deficient number, since it is larger than the sum of its proper divisors (413075).

2017285 is a wasteful number, since it uses less digits than its factorization.

2017285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2017285 is about 1420.3115855333. The cubic root of 2017285 is about 126.3540266033.

The spelling of 2017285 in words is "two million, seventeen thousand, two hundred eighty-five".

Divisors: 1 5 313 1289 1565 6445 403457 2017285