Base | Representation |
---|---|
bin | 111001101011… |
… | …1010110110111 |
3 | 2002220110112122 |
4 | 1303113112313 |
5 | 30220222411 |
6 | 3000110155 |
7 | 515024525 |
oct | 163272667 |
9 | 62813478 |
10 | 30242231 |
11 | 16086488 |
12 | a16535b |
13 | 635b316 |
14 | 4033315 |
15 | 29c59db |
hex | 1cd75b7 |
30242231 has 2 divisors, whose sum is σ = 30242232. Its totient is φ = 30242230.
The previous prime is 30242207. The next prime is 30242239. The reversal of 30242231 is 13224203.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30242231 - 210 = 30241207 is a prime.
It is a super-2 number, since 2×302422312 = 1829185071714722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30242239) 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 as a sum of consecutive naturals, namely, 15121115 + 15121116.
It is an arithmetic number, because the mean of its divisors is an integer number (15121116).
Almost surely, 230242231 is an apocalyptic number.
30242231 is a deficient number, since it is larger than the sum of its proper divisors (1).
30242231 is an equidigital number, since it uses as much as digits as its factorization.
30242231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 30242231 is about 5499.2936819195. The cubic root of 30242231 is about 311.5573075988.
Adding to 30242231 its reverse (13224203), we get a palindrome (43466434).
The spelling of 30242231 in words is "thirty million, two hundred forty-two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •