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225384405 = 3524162347
BaseRepresentation
bin11010110111100…
…01011111010101
3120201002201021120
431123301133111
5430144300110
634210434153
75404510251
oct1533613725
9521081246
10225384405
11106250704
1263592959
133790446c
1421d0d261
1514bc0870
hexd6f17d5

225384405 has 16 divisors (see below), whose sum is σ = 362117184. Its totient is φ = 119704320.

The previous prime is 225384377. The next prime is 225384431. The reversal of 225384405 is 504483522.

It is not a de Polignac number, because 225384405 - 210 = 225383381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27559 + ... + 34788.

It is an arithmetic number, because the mean of its divisors is an integer number (22632324).

Almost surely, 2225384405 is an apocalyptic number.

It is an amenable number.

225384405 is a deficient number, since it is larger than the sum of its proper divisors (136732779).

225384405 is a wasteful number, since it uses less digits than its factorization.

225384405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62596.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 225384405 is about 15012.8080318107. The cubic root of 225384405 is about 608.5663771335.

The spelling of 225384405 in words is "two hundred twenty-five million, three hundred eighty-four thousand, four hundred five".

Divisors: 1 3 5 15 241 723 1205 3615 62347 187041 311735 935205 15025627 45076881 75128135 225384405