Base | Representation |
---|---|
bin | 100110101110… |
… | …0100011010001 |
3 | 1102012110011011 |
4 | 1031130203101 |
5 | 20144131113 |
6 | 2003050521 |
7 | 334364413 |
oct | 115344321 |
9 | 42173134 |
10 | 20302033 |
11 | 10507244 |
12 | 6970a41 |
13 | 428aa4b |
14 | 29a69b3 |
15 | 1bb063d |
hex | 135c8d1 |
20302033 has 4 divisors (see below), whose sum is σ = 20316528. Its totient is φ = 20287540.
The previous prime is 20302027. The next prime is 20302067. The reversal of 20302033 is 33020302.
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 20302033 - 213 = 20293841 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20302133) 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, 4891 + ... + 8032.
It is an arithmetic number, because the mean of its divisors is an integer number (5079132).
Almost surely, 220302033 is an apocalyptic number.
It is an amenable number.
20302033 is a deficient number, since it is larger than the sum of its proper divisors (14495).
20302033 is a wasteful number, since it uses less digits than its factorization.
20302033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14494.
The product of its (nonzero) digits is 108, while the sum is 13.
The square root of 20302033 is about 4505.7777353083. Note that the first 4 decimals coincide. The cubic root of 20302033 is about 272.8013466235.
Adding to 20302033 its reverse (33020302), we get a palindrome (53322335).
The spelling of 20302033 in words is "twenty million, three hundred two thousand, thirty-three".
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