Base | Representation |
---|---|
bin | 11010101110101… |
… | …01110000010111 |
3 | 120121220200002002 |
4 | 31113111300113 |
5 | 424400102411 |
6 | 34125505515 |
7 | 5361600062 |
oct | 1527256027 |
9 | 517820062 |
10 | 224222231 |
11 | 105627532 |
12 | 6311229b |
13 | 375b849c |
14 | 21ac98d9 |
15 | 14a4133b |
hex | d5d5c17 |
224222231 has 4 divisors (see below), whose sum is σ = 237411792. Its totient is φ = 211032672.
The previous prime is 224222221. The next prime is 224222237. The reversal of 224222231 is 132222422.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 224222231 - 226 = 157113367 is a prime.
It is a super-2 number, since 2×2242222312 = 100551217749234722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (224222237) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6594755 + ... + 6594788.
It is an arithmetic number, because the mean of its divisors is an integer number (59352948).
Almost surely, 2224222231 is an apocalyptic number.
224222231 is a deficient number, since it is larger than the sum of its proper divisors (13189561).
224222231 is a wasteful number, since it uses less digits than its factorization.
224222231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13189560.
The product of its digits is 768, while the sum is 20.
The square root of 224222231 is about 14974.0519232438. The cubic root of 224222231 is about 607.5185685304.
Adding to 224222231 its reverse (132222422), we get a palindrome (356444653).
The spelling of 224222231 in words is "two hundred twenty-four million, two hundred twenty-two thousand, two hundred thirty-one".
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