Base | Representation |
---|---|
bin | 111001001110… |
… | …0001111011101 |
3 | 2002110011101120 |
4 | 1302130033131 |
5 | 30140000333 |
6 | 2551001153 |
7 | 512665554 |
oct | 162341735 |
9 | 62404346 |
10 | 30000093 |
11 | 15a30572 |
12 | a0691b9 |
13 | 62a5046 |
14 | 3dacd9b |
15 | 2978db3 |
hex | 1c9c3dd |
30000093 has 8 divisors (see below), whose sum is σ = 40177248. Its totient is φ = 19911504.
The previous prime is 30000083. The next prime is 30000109. The reversal of 30000093 is 39000003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30000093 - 29 = 29999581 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30000023) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21346 + ... + 22707.
It is an arithmetic number, because the mean of its divisors is an integer number (5022156).
Almost surely, 230000093 is an apocalyptic number.
It is an amenable number.
30000093 is a deficient number, since it is larger than the sum of its proper divisors (10177155).
30000093 is a wasteful number, since it uses less digits than its factorization.
30000093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44283.
The product of its (nonzero) digits is 81, while the sum is 15.
The square root of 30000093 is about 5477.2340647447. The cubic root of 30000093 is about 310.7235716757.
Adding to 30000093 its reverse (39000003), we get a palindrome (69000096).
The spelling of 30000093 in words is "thirty million, ninety-three", and thus it is an aban number and an uban number.
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