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224221044 = 22318685087
BaseRepresentation
bin11010101110101…
…01011101110100
3120121220121110010
431113111131310
5424400033134
634125500220
75361563445
oct1527253564
9517817403
10224221044
11105626653
1263111670
13375b7a98
1421ac92cc
1514a40ce9
hexd5d5774

224221044 has 12 divisors (see below), whose sum is σ = 523182464. Its totient is φ = 74740344.

The previous prime is 224221037. The next prime is 224221051. The reversal of 224221044 is 440122422.

It is an interprime number because it is at equal distance from previous prime (224221037) and next prime (224221051).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 224221044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9342532 + ... + 9342555.

Almost surely, 2224221044 is an apocalyptic number.

It is an amenable number.

224221044 is an abundant number, since it is smaller than the sum of its proper divisors (298961420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224221044 is a wasteful number, since it uses less digits than its factorization.

224221044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18685094 (or 18685092 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 224221044 is about 14974.0122879608. The cubic root of 224221044 is about 607.5174964901.

Adding to 224221044 its reverse (440122422), we get a palindrome (664343466).

The spelling of 224221044 in words is "two hundred twenty-four million, two hundred twenty-one thousand, forty-four".

Divisors: 1 2 3 4 6 12 18685087 37370174 56055261 74740348 112110522 224221044