Base | Representation |
---|---|
bin | 111001011110… |
… | …0000010001001 |
3 | 2002200210000112 |
4 | 1302330002021 |
5 | 30203132223 |
6 | 2553444105 |
7 | 514050323 |
oct | 162740211 |
9 | 62623015 |
10 | 30130313 |
11 | 1600a394 |
12 | a110635 |
13 | 631c3b5 |
14 | 4004613 |
15 | 29a2778 |
hex | 1cbc089 |
30130313 has 4 divisors (see below), whose sum is σ = 30144720. Its totient is φ = 30115908.
The previous prime is 30130283. The next prime is 30130339. The reversal of 30130313 is 31303103.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30130313 - 26 = 30130249 is a prime.
It is a super-2 number, since 2×301303132 = 1815671522955938, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30130343) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395 + ... + 8472.
It is an arithmetic number, because the mean of its divisors is an integer number (7536180).
Almost surely, 230130313 is an apocalyptic number.
It is an amenable number.
30130313 is a deficient number, since it is larger than the sum of its proper divisors (14407).
30130313 is a wasteful number, since it uses less digits than its factorization.
30130313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14406.
The product of its (nonzero) digits is 81, while the sum is 14.
The square root of 30130313 is about 5489.1085797240. The cubic root of 30130313 is about 311.1725038377.
Adding to 30130313 its reverse (31303103), we get a palindrome (61433416).
The spelling of 30130313 in words is "thirty million, one hundred thirty thousand, three hundred thirteen".
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