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224022231 = 32231082233
BaseRepresentation
bin11010101101001…
…00111011010111
3120121112111201200
431112210323113
5424322202411
634121323543
75360105016
oct1526447327
9517474650
10224022231
11105500244
12630365b3
1337548444
1421a76a7d
1514a01e56
hexd5a4ed7

224022231 has 12 divisors (see below), whose sum is σ = 337657008. Its totient is φ = 142854624.

The previous prime is 224022223. The next prime is 224022247. The reversal of 224022231 is 132220422.

It is not a de Polignac number, because 224022231 - 23 = 224022223 is a prime.

It is a super-2 number, since 2×2240222312 = 100371919964434722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224022221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 540910 + ... + 541323.

It is an arithmetic number, because the mean of its divisors is an integer number (28138084).

Almost surely, 2224022231 is an apocalyptic number.

224022231 is a deficient number, since it is larger than the sum of its proper divisors (113634777).

224022231 is a wasteful number, since it uses less digits than its factorization.

224022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082262 (or 1082259 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 224022231 is about 14967.3722142532. The cubic root of 224022231 is about 607.3378849038.

Adding to 224022231 its reverse (132220422), we get a palindrome (356242653).

The spelling of 224022231 in words is "two hundred twenty-four million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 23 69 207 1082233 3246699 9740097 24891359 74674077 224022231