Base | Representation |
---|---|
bin | 100110110001… |
… | …1011000111011 |
3 | 1102020212120120 |
4 | 1031203120323 |
5 | 20201030133 |
6 | 2003424323 |
7 | 334542156 |
oct | 115433073 |
9 | 42225516 |
10 | 20330043 |
11 | 10526298 |
12 | 69850a3 |
13 | 429a716 |
14 | 29b2c9d |
15 | 1bb8ab3 |
hex | 136363b |
20330043 has 8 divisors (see below), whose sum is σ = 27566400. Its totient is φ = 13323528.
The previous prime is 20329993. The next prime is 20330047. The reversal of 20330043 is 34003302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20330043 - 26 = 20329979 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20330047) 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, 57253 + ... + 57606.
It is an arithmetic number, because the mean of its divisors is an integer number (3445800).
Almost surely, 220330043 is an apocalyptic number.
20330043 is a deficient number, since it is larger than the sum of its proper divisors (7236357).
20330043 is a wasteful number, since it uses less digits than its factorization.
20330043 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114921.
The product of its (nonzero) digits is 216, while the sum is 15.
The square root of 20330043 is about 4508.8848954037. The cubic root of 20330043 is about 272.9267471081.
Adding to 20330043 its reverse (34003302), we get a palindrome (54333345).
The spelling of 20330043 in words is "twenty million, three hundred thirty thousand, forty-three".
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