Base | Representation |
---|---|
bin | 111010000010… |
… | …1010001101001 |
3 | 2010021000112122 |
4 | 1310011101221 |
5 | 30242232223 |
6 | 3004121025 |
7 | 516440054 |
oct | 164052151 |
9 | 63230478 |
10 | 30430313 |
11 | 161a4821 |
12 | a236175 |
13 | 63c5b04 |
14 | 4081a9b |
15 | 2a115c8 |
hex | 1d05469 |
30430313 has 4 divisors (see below), whose sum is σ = 31411968. Its totient is φ = 29448660.
The previous prime is 30430271. The next prime is 30430331. The reversal of 30430313 is 31303403.
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, and also an emirpimes, since its reverse is a distinct semiprime: 31303403 = 71 ⋅440893.
It is a cyclic number.
It is not a de Polignac number, because 30430313 - 224 = 13653097 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30430291 and 30430300.
It is not an unprimeable number, because it can be changed into a prime (30430013) 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, 490781 + ... + 490842.
It is an arithmetic number, because the mean of its divisors is an integer number (7852992).
Almost surely, 230430313 is an apocalyptic number.
It is an amenable number.
30430313 is a deficient number, since it is larger than the sum of its proper divisors (981655).
30430313 is an equidigital number, since it uses as much as digits as its factorization.
30430313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 981654.
The product of its (nonzero) digits is 324, while the sum is 17.
The square root of 30430313 is about 5516.3677361104. The cubic root of 30430313 is about 312.2018506728.
Adding to 30430313 its reverse (31303403), we get a palindrome (61733716).
The spelling of 30430313 in words is "thirty million, four hundred thirty thousand, three hundred thirteen".
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