Base | Representation |
---|---|
bin | 111010000010… |
… | …1010000100001 |
3 | 2010021000102222 |
4 | 1310011100201 |
5 | 30242231431 |
6 | 3004120425 |
7 | 516436622 |
oct | 164052041 |
9 | 63230388 |
10 | 30430241 |
11 | 161a4766 |
12 | a236115 |
13 | 63c5a7a |
14 | 4081a49 |
15 | 2a1157b |
hex | 1d05421 |
30430241 has 4 divisors (see below), whose sum is σ = 31172484. Its totient is φ = 29688000.
The previous prime is 30430223. The next prime is 30430271. The reversal of 30430241 is 14203403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14203403 = 653 ⋅21751.
It can be written as a sum of positive squares in 2 ways, for example, as 16777216 + 13653025 = 4096^2 + 3695^2 .
It is a cyclic number.
It is not a de Polignac number, because 30430241 - 26 = 30430177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30430201) 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, 371060 + ... + 371141.
It is an arithmetic number, because the mean of its divisors is an integer number (7793121).
Almost surely, 230430241 is an apocalyptic number.
It is an amenable number.
30430241 is a deficient number, since it is larger than the sum of its proper divisors (742243).
30430241 is an equidigital number, since it uses as much as digits as its factorization.
30430241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 742242.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 30430241 is about 5516.3612100732. The cubic root of 30430241 is about 312.2016044430.
Adding to 30430241 its reverse (14203403), we get a palindrome (44633644).
The spelling of 30430241 in words is "thirty million, four hundred thirty thousand, two hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •