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225235361 = 1317325797
BaseRepresentation
bin11010110110011…
…01000110100001
3120200211010211102
431123031012201
5430130012421
634203324145
75403316601
oct1533150641
9520733742
10225235361
1110615972a
1263520655
1337881680
1421cb0c01
1514b9160b
hexd6cd1a1

225235361 has 4 divisors (see below), whose sum is σ = 242561172. Its totient is φ = 207909552.

The previous prime is 225235349. The next prime is 225235369. The reversal of 225235361 is 163532522.

225235361 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.

It can be written as a sum of positive squares in 2 ways, for example, as 91393600 + 133841761 = 9560^2 + 11569^2 .

It is a cyclic number.

It is not a de Polignac number, because 225235361 - 210 = 225234337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225235369) 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, 8662886 + ... + 8662911.

It is an arithmetic number, because the mean of its divisors is an integer number (60640293).

Almost surely, 2225235361 is an apocalyptic number.

It is an amenable number.

225235361 is a deficient number, since it is larger than the sum of its proper divisors (17325811).

225235361 is a wasteful number, since it uses less digits than its factorization.

225235361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325810.

The product of its digits is 10800, while the sum is 29.

The square root of 225235361 is about 15007.8433160798. The cubic root of 225235361 is about 608.4322016743.

Adding to 225235361 its reverse (163532522), we get a palindrome (388767883).

The spelling of 225235361 in words is "two hundred twenty-five million, two hundred thirty-five thousand, three hundred sixty-one".

Divisors: 1 13 17325797 225235361