Base | Representation |
---|---|
bin | 111010101100… |
… | …0001101111001 |
3 | 2010220021120011 |
4 | 1311120031321 |
5 | 30334120131 |
6 | 3015301521 |
7 | 522353401 |
oct | 165301571 |
9 | 63807504 |
10 | 30770041 |
11 | 16406a95 |
12 | a37a8a1 |
13 | 64b4633 |
14 | 412d801 |
15 | 2a7c0b1 |
hex | 1d58379 |
30770041 has 2 divisors, whose sum is σ = 30770042. Its totient is φ = 30770040.
The previous prime is 30770039. The next prime is 30770057. The reversal of 30770041 is 14007703.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29811600 + 958441 = 5460^2 + 979^2 .
It is an emirp because it is prime and its reverse (14007703) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30770041 - 21 = 30770039 is a prime.
Together with 30770039, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 30769994 and 30770021.
It is not a weakly prime, because it can be changed into another prime (30770071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15385020 + 15385021.
It is an arithmetic number, because the mean of its divisors is an integer number (15385021).
Almost surely, 230770041 is an apocalyptic number.
It is an amenable number.
30770041 is a deficient number, since it is larger than the sum of its proper divisors (1).
30770041 is an equidigital number, since it uses as much as digits as its factorization.
30770041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 588, while the sum is 22.
The square root of 30770041 is about 5547.0749949861. The cubic root of 30770041 is about 313.3593745018.
Adding to 30770041 its reverse (14007703), we get a palindrome (44777744).
The spelling of 30770041 in words is "thirty million, seven hundred seventy thousand, forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •