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224221233 = 3313976073
BaseRepresentation
bin11010101110101…
…01100000110001
3120121220121201010
431113111200301
5424400034413
634125501133
75361564135
oct1527254061
9517817633
10224221233
11105626805
12631117a9
13375b7bb2
1421ac93c5
1514a40dc3
hexd5d5831

224221233 has 16 divisors (see below), whose sum is σ = 309433856. Its totient is φ = 144270720.

The previous prime is 224221199. The next prime is 224221241. The reversal of 224221233 is 332122422.

224221233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224221233 - 28 = 224220977 is a prime.

It is a super-3 number, since 3×2242212333 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224221253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33885 + ... + 39957.

It is an arithmetic number, because the mean of its divisors is an integer number (19339616).

Almost surely, 2224221233 is an apocalyptic number.

It is an amenable number.

224221233 is a deficient number, since it is larger than the sum of its proper divisors (85212623).

224221233 is a wasteful number, since it uses less digits than its factorization.

224221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504.

The product of its digits is 1152, while the sum is 21.

The square root of 224221233 is about 14974.0185988932. The cubic root of 224221233 is about 607.5176671859.

Adding to 224221233 its reverse (332122422), we get a palindrome (556343655).

The spelling of 224221233 in words is "two hundred twenty-four million, two hundred twenty-one thousand, two hundred thirty-three".

Divisors: 1 3 31 93 397 1191 6073 12307 18219 36921 188263 564789 2410981 7232943 74740411 224221233