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225455205 = 3515030347
BaseRepresentation
bin11010111000000…
…10110001100101
3120201020022101210
431130002301211
5430204031310
634212142033
75405223543
oct1534026145
9521208353
10225455205
11106299918
1263607919
133792a761
1421d2ad93
1514bd6820
hexd702c65

225455205 has 8 divisors (see below), whose sum is σ = 360728352. Its totient is φ = 120242768.

The previous prime is 225455203. The next prime is 225455299. The reversal of 225455205 is 502554522.

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

It is a cyclic number.

It is not a de Polignac number, because 225455205 - 21 = 225455203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225455203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7515159 + ... + 7515188.

It is an arithmetic number, because the mean of its divisors is an integer number (45091044).

Almost surely, 2225455205 is an apocalyptic number.

It is an amenable number.

225455205 is a deficient number, since it is larger than the sum of its proper divisors (135273147).

225455205 is a wasteful number, since it uses less digits than its factorization.

225455205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15030355.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 225455205 is about 15015.1658332501. The cubic root of 225455205 is about 608.6300934447.

The spelling of 225455205 in words is "two hundred twenty-five million, four hundred fifty-five thousand, two hundred five".

Divisors: 1 3 5 15 15030347 45091041 75151735 225455205