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225899 = 2231013
BaseRepresentation
bin110111001001101011
3102110212122
4313021223
524212044
64501455
71630412
oct671153
9373778
10225899
111447a3
12aa88b
137ba8b
145c479
1546dee
hex3726b

225899 has 4 divisors (see below), whose sum is σ = 227136. Its totient is φ = 224664.

The previous prime is 225889. The next prime is 225919. The reversal of 225899 is 998522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225899 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225899.

It is not an unprimeable number, because it can be changed into a prime (225809) 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, 284 + ... + 729.

It is an arithmetic number, because the mean of its divisors is an integer number (56784).

2225899 is an apocalyptic number.

225899 is a deficient number, since it is larger than the sum of its proper divisors (1237).

225899 is a wasteful number, since it uses less digits than its factorization.

225899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its digits is 12960, while the sum is 35.

The square root of 225899 is about 475.2883335408. The cubic root of 225899 is about 60.9029182266.

The spelling of 225899 in words is "two hundred twenty-five thousand, eight hundred ninety-nine".

Divisors: 1 223 1013 225899