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225320893 = 732188699
BaseRepresentation
bin11010110111000…
…01111110111101
3120200222111011021
431123201332331
5430140232033
634205224141
75404124140
oct1533417675
9520874137
10225320893
11106207a16
1263562051
13378b1595
1421cd4057
1514babb2d
hexd6e1fbd

225320893 has 4 divisors (see below), whose sum is σ = 257509600. Its totient is φ = 193132188.

The previous prime is 225320891. The next prime is 225320897. The reversal of 225320893 is 398023522.

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 225320893 - 21 = 225320891 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 (225320891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16094343 + ... + 16094356.

It is an arithmetic number, because the mean of its divisors is an integer number (64377400).

Almost surely, 2225320893 is an apocalyptic number.

It is an amenable number.

225320893 is a deficient number, since it is larger than the sum of its proper divisors (32188707).

225320893 is an equidigital number, since it uses as much as digits as its factorization.

225320893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32188706.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 225320893 is about 15010.6926222610. The cubic root of 225320893 is about 608.5092082877.

The spelling of 225320893 in words is "two hundred twenty-five million, three hundred twenty thousand, eight hundred ninety-three".

Divisors: 1 7 32188699 225320893