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2285081 = 22310247
BaseRepresentation
bin1000101101111000011001
311022002112122
420231320121
51041110311
6120551025
725265021
oct10557031
94262478
102285081
1113208a7
12922475
13620126
14436a81
153020db
hex22de19

2285081 has 4 divisors (see below), whose sum is σ = 2295552. Its totient is φ = 2274612.

The previous prime is 2285071. The next prime is 2285099. The reversal of 2285081 is 1805822.

2285081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2285081 - 210 = 2284057 is a prime.

It is a super-2 number, since 2×22850812 = 10443190353122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2285081.

It is not an unprimeable number, because it can be changed into a prime (2285071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4901 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (573888).

22285081 is an apocalyptic number.

It is an amenable number.

2285081 is a deficient number, since it is larger than the sum of its proper divisors (10471).

2285081 is a wasteful number, since it uses less digits than its factorization.

2285081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10470.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2285081 is about 1511.6484379643. The cubic root of 2285081 is about 131.7145845636.

The spelling of 2285081 in words is "two million, two hundred eighty-five thousand, eighty-one".

Divisors: 1 223 10247 2285081