Base | Representation |
---|---|
bin | 100110100001… |
… | …1101001011110 |
3 | 1102000021020021 |
4 | 1031003221132 |
5 | 20132400110 |
6 | 2000542354 |
7 | 333461134 |
oct | 115035136 |
9 | 42007207 |
10 | 20200030 |
11 | 10447644 |
12 | 69219ba |
13 | 42534a6 |
14 | 297b754 |
15 | 1b902da |
hex | 1343a5e |
20200030 has 8 divisors (see below), whose sum is σ = 36360072. Its totient is φ = 8080008.
The previous prime is 20200027. The next prime is 20200043. The reversal of 20200030 is 3000202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 20199986 and 20200022.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009992 + ... + 1010011.
It is an arithmetic number, because the mean of its divisors is an integer number (4545009).
Almost surely, 220200030 is an apocalyptic number.
20200030 is a deficient number, since it is larger than the sum of its proper divisors (16160042).
20200030 is a wasteful number, since it uses less digits than its factorization.
20200030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2020010.
The product of its (nonzero) digits is 12, while the sum is 7.
The square root of 20200030 is about 4494.4443483038. Note that the first 3 decimals coincide. The cubic root of 20200030 is about 272.3437029804.
Adding to 20200030 its reverse (3000202), we get a palindrome (23200232).
The spelling of 20200030 in words is "twenty million, two hundred thousand, thirty".
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