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225382911 = 31323251263
BaseRepresentation
bin11010110111100…
…01000111111111
3120201002122020020
431123301013333
5430144223121
634210423223
75404503015
oct1533610777
9521078206
10225382911
1110624a576
1263591b13
1337903890
1421d0c8b5
1514bc01c6
hexd6f11ff

225382911 has 16 divisors (see below), whose sum is σ = 337698816. Its totient is φ = 132666336.

The previous prime is 225382903. The next prime is 225382919. The reversal of 225382911 is 119283522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225382903) and next prime (225382919).

It is not a de Polignac number, because 225382911 - 23 = 225382903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225382919) 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 15 ways as a sum of consecutive naturals, for example, 124735 + ... + 126528.

It is an arithmetic number, because the mean of its divisors is an integer number (21106176).

Almost surely, 2225382911 is an apocalyptic number.

225382911 is a deficient number, since it is larger than the sum of its proper divisors (112315905).

225382911 is a wasteful number, since it uses less digits than its factorization.

225382911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251302.

The product of its digits is 8640, while the sum is 33.

The square root of 225382911 is about 15012.7582742146. The cubic root of 225382911 is about 608.5650324676.

The spelling of 225382911 in words is "two hundred twenty-five million, three hundred eighty-two thousand, nine hundred eleven".

Divisors: 1 3 13 23 39 69 299 897 251263 753789 3266419 5779049 9799257 17337147 75127637 225382911