Base | Representation |
---|---|
bin | 111001011110… |
… | …0000011000111 |
3 | 2002200210002211 |
4 | 1302330003013 |
5 | 30203133000 |
6 | 2553444251 |
7 | 514050442 |
oct | 162740307 |
9 | 62623084 |
10 | 30130375 |
11 | 1600a440 |
12 | a110687 |
13 | 631c432 |
14 | 4004659 |
15 | 29a27ba |
hex | 1cbc0c7 |
30130375 has 32 divisors (see below), whose sum is σ = 43467840. Its totient is φ = 20608000.
The previous prime is 30130361. The next prime is 30130379. The reversal of 30130375 is 57303103.
30130375 = 762 + 772 + ... + 4492.
It is not a de Polignac number, because 30130375 - 25 = 30130343 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30130379) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22731 + ... + 24019.
It is an arithmetic number, because the mean of its divisors is an integer number (1358370).
Almost surely, 230130375 is an apocalyptic number.
30130375 is a deficient number, since it is larger than the sum of its proper divisors (13337465).
30130375 is a wasteful number, since it uses less digits than its factorization.
30130375 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1332 (or 1322 counting only the distinct ones).
The product of its (nonzero) digits is 945, while the sum is 22.
The square root of 30130375 is about 5489.1142272684. The cubic root of 30130375 is about 311.1727172737.
Adding to 30130375 its reverse (57303103), we get a palindrome (87433478).
The spelling of 30130375 in words is "thirty million, one hundred thirty thousand, three hundred seventy-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •