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225945495 = 32537971399
BaseRepresentation
bin11010111011110…
…10011110010111
3120202011012221200
431131322132113
5430320223440
634230443543
75412335136
oct1535723627
9522135850
10225945495
111065a4216
12638035b3
1337a6c979
142201791d
1514c81c30
hexd77a797

225945495 has 48 divisors (see below), whose sum is σ = 406660800. Its totient is φ = 115955712.

The previous prime is 225945493. The next prime is 225945509. The reversal of 225945495 is 594549522.

225945495 is a `hidden beast` number, since 2 + 2 + 594 + 54 + 9 + 5 = 666.

It is not a de Polignac number, because 225945495 - 21 = 225945493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 225945495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225945493) 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 47 ways as a sum of consecutive naturals, for example, 160806 + ... + 162204.

It is an arithmetic number, because the mean of its divisors is an integer number (8472100).

Almost surely, 2225945495 is an apocalyptic number.

225945495 is a deficient number, since it is larger than the sum of its proper divisors (180715305).

225945495 is a wasteful number, since it uses less digits than its factorization.

225945495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1541 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 225945495 is about 15031.4834597255. The cubic root of 225945495 is about 609.0709632823.

The spelling of 225945495 in words is "two hundred twenty-five million, nine hundred forty-five thousand, four hundred ninety-five".

Divisors: 1 3 5 9 15 37 45 97 111 185 291 333 485 555 873 1399 1455 1665 3589 4197 4365 6995 10767 12591 17945 20985 32301 51763 53835 62955 135703 155289 161505 258815 407109 465867 678515 776445 1221327 2035545 2329335 5021011 6106635 15063033 25105055 45189099 75315165 225945495