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225253085 = 5172126177
BaseRepresentation
bin11010110110100…
…01011011011101
3120200212001010212
431123101123131
5430131044320
634203542205
75403422351
oct1533213335
9520761125
10225253085
11106170a82
126352a965
1337889765
1421cb7461
1514b969c5
hexd6d16dd

225253085 has 8 divisors (see below), whose sum is σ = 270471096. Its totient is φ = 180090880.

The previous prime is 225253051. The next prime is 225253087. The reversal of 225253085 is 580352522.

It can be written as a sum of positive squares in 4 ways, for example, as 102353689 + 122899396 = 10117^2 + 11086^2 .

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

It is not a de Polignac number, because 225253085 - 210 = 225252061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225253087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4484 + ... + 21693.

It is an arithmetic number, because the mean of its divisors is an integer number (33808887).

Almost surely, 2225253085 is an apocalyptic number.

It is an amenable number.

225253085 is a deficient number, since it is larger than the sum of its proper divisors (45218011).

225253085 is a wasteful number, since it uses less digits than its factorization.

225253085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27903.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 225253085 is about 15008.4337957030. The cubic root of 225253085 is about 608.4481606390.

The spelling of 225253085 in words is "two hundred twenty-five million, two hundred fifty-three thousand, eighty-five".

Divisors: 1 5 1721 8605 26177 130885 45050617 225253085