Base | Representation |
---|---|
bin | 111001010000… |
… | …1000111111101 |
3 | 2002111011211022 |
4 | 1302201013331 |
5 | 30141120333 |
6 | 2551233525 |
7 | 513111065 |
oct | 162410775 |
9 | 62434738 |
10 | 30020093 |
11 | 15a445a4 |
12 | a0788a5 |
13 | 62b118c |
14 | 3db63a5 |
15 | 297ec98 |
hex | 1ca11fd |
30020093 has 4 divisors (see below), whose sum is σ = 30092160. Its totient is φ = 29948028.
The previous prime is 30020051. The next prime is 30020119. The reversal of 30020093 is 39002003.
It is a happy number.
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: 39002003 = 19 ⋅2052737.
It is a cyclic number.
It is not a de Polignac number, because 30020093 - 214 = 30003709 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 (30020293) 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, 35405 + ... + 36242.
It is an arithmetic number, because the mean of its divisors is an integer number (7523040).
Almost surely, 230020093 is an apocalyptic number.
It is an amenable number.
30020093 is a deficient number, since it is larger than the sum of its proper divisors (72067).
30020093 is an equidigital number, since it uses as much as digits as its factorization.
30020093 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72066.
The product of its (nonzero) digits is 162, while the sum is 17.
The square root of 30020093 is about 5479.0594995857. The cubic root of 30020093 is about 310.7926058057.
Adding to 30020093 its reverse (39002003), we get a palindrome (69022096).
The spelling of 30020093 in words is "thirty million, twenty thousand, ninety-three".
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