Search a number
-
+
225269 = 1120479
BaseRepresentation
bin110110111111110101
3102110000022
4312333311
524202034
64454525
71625522
oct667765
9373008
10225269
11144280
12aa445
137b6c5
145c149
1546b2e
hex36ff5

225269 has 4 divisors (see below), whose sum is σ = 245760. Its totient is φ = 204780.

The previous prime is 225263. The next prime is 225287. The reversal of 225269 is 962522.

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 225269 - 212 = 221173 is a prime.

It is a super-2 number, since 2×2252692 = 101492244722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10229 + ... + 10250.

It is an arithmetic number, because the mean of its divisors is an integer number (61440).

2225269 is an apocalyptic number.

It is an amenable number.

225269 is a deficient number, since it is larger than the sum of its proper divisors (20491).

225269 is a wasteful number, since it uses less digits than its factorization.

225269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20490.

The product of its digits is 2160, while the sum is 26.

The square root of 225269 is about 474.6251152225. The cubic root of 225269 is about 60.8462490039.

It can be divided in two parts, 225 and 269, that added together give a palindrome (494).

The spelling of 225269 in words is "two hundred twenty-five thousand, two hundred sixty-nine".

Divisors: 1 11 20479 225269