Base | Representation |
---|---|
bin | 11010011111100… |
… | …01010110011001 |
3 | 120111011212100221 |
4 | 31033301112121 |
5 | 423343104410 |
6 | 34015200041 |
7 | 5335664335 |
oct | 1517612631 |
9 | 514155327 |
10 | 222238105 |
11 | 1044a1861 |
12 | 62516021 |
13 | 3707234b |
14 | 217307c5 |
15 | 1479d4da |
hex | d3f1599 |
222238105 has 8 divisors (see below), whose sum is σ = 266790600. Its totient is φ = 177720576.
The previous prime is 222238103. The next prime is 222238109. The reversal of 222238105 is 501832222.
It can be written as a sum of positive squares in 4 ways, for example, as 43454464 + 178783641 = 6592^2 + 13371^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 222238105 - 21 = 222238103 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 222238105.
It is not an unprimeable number, because it can be changed into a prime (222238103) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8251 + ... + 22639.
It is an arithmetic number, because the mean of its divisors is an integer number (33348825).
Almost surely, 2222238105 is an apocalyptic number.
It is an amenable number.
222238105 is a deficient number, since it is larger than the sum of its proper divisors (44552495).
222238105 is a wasteful number, since it uses less digits than its factorization.
222238105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17483.
The product of its (nonzero) digits is 1920, while the sum is 25.
The square root of 222238105 is about 14907.6525650419. The cubic root of 222238105 is about 605.7212943949.
The spelling of 222238105 in words is "two hundred twenty-two million, two hundred thirty-eight thousand, one hundred five".
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