Base | Representation |
---|---|
bin | 11010011101111… |
… | …10100110010111 |
3 | 120110210022012220 |
4 | 31032332212113 |
5 | 423314431411 |
6 | 34010513423 |
7 | 5334140313 |
oct | 1516764627 |
9 | 513708186 |
10 | 222030231 |
11 | 10436a665 |
12 | 62435873 |
13 | 36ccb847 |
14 | 216b8b43 |
15 | 1475bb06 |
hex | d3be997 |
222030231 has 8 divisors (see below), whose sum is σ = 296321520. Its totient is φ = 147879552.
The previous prime is 222030223. The next prime is 222030233. The reversal of 222030231 is 132030222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 222030231 - 23 = 222030223 is a prime.
It is a super-2 number, since 2×2220302312 = 98594846955826722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 222030231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222030233) 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, 31410 + ... + 37823.
It is an arithmetic number, because the mean of its divisors is an integer number (37040190).
Almost surely, 2222030231 is an apocalyptic number.
222030231 is a deficient number, since it is larger than the sum of its proper divisors (74291289).
222030231 is a wasteful number, since it uses less digits than its factorization.
222030231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70305.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 222030231 is about 14900.6788771519. The cubic root of 222030231 is about 605.5323784163.
Adding to 222030231 its reverse (132030222), we get a palindrome (354060453).
Subtracting from 222030231 its reverse (132030222), we obtain a palindrome (90000009).
The spelling of 222030231 in words is "two hundred twenty-two million, thirty thousand, two hundred thirty-one".
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