Base | Representation |
---|---|
bin | 111001001110… |
… | …0011101110101 |
3 | 2002110012122122 |
4 | 1302130131311 |
5 | 30140013023 |
6 | 2551005325 |
7 | 513001340 |
oct | 162343565 |
9 | 62405578 |
10 | 30001013 |
11 | 15a31229 |
12 | a069845 |
13 | 62a55a3 |
14 | 3dad457 |
15 | 29792c8 |
hex | 1c9c775 |
30001013 has 4 divisors (see below), whose sum is σ = 34286880. Its totient is φ = 25715148.
The previous prime is 30001009. The next prime is 30001031. The reversal of 30001013 is 31010003.
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 30001013 - 22 = 30001009 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30001003) 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, 2142923 + ... + 2142936.
It is an arithmetic number, because the mean of its divisors is an integer number (8571720).
Almost surely, 230001013 is an apocalyptic number.
It is an amenable number.
30001013 is a deficient number, since it is larger than the sum of its proper divisors (4285867).
30001013 is an equidigital number, since it uses as much as digits as its factorization.
30001013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4285866.
The product of its (nonzero) digits is 9, while the sum is 8.
The square root of 30001013 is about 5477.3180480962. The cubic root of 30001013 is about 310.7267479188.
Adding to 30001013 its reverse (31010003), we get a palindrome (61011016).
The spelling of 30001013 in words is "thirty million, one thousand, thirteen".
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