Base | Representation |
---|---|
bin | 100110100110… |
… | …1111110011011 |
3 | 1102002102020222 |
4 | 1031031332123 |
5 | 20140223311 |
6 | 2001510255 |
7 | 334025354 |
oct | 115157633 |
9 | 42072228 |
10 | 20242331 |
11 | 104763aa |
12 | 694238b |
13 | 4269815 |
14 | 298cd2b |
15 | 1b9cadb |
hex | 134df9b |
20242331 has 2 divisors, whose sum is σ = 20242332. Its totient is φ = 20242330.
The previous prime is 20242307. The next prime is 20242333. The reversal of 20242331 is 13324202.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20242331 - 218 = 19980187 is a prime.
It is a super-2 number, since 2×202423312 = 819503928627122, which contains 22 as substring.
Together with 20242333, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (20242333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121165 + 10121166.
It is an arithmetic number, because the mean of its divisors is an integer number (10121166).
Almost surely, 220242331 is an apocalyptic number.
20242331 is a deficient number, since it is larger than the sum of its proper divisors (1).
20242331 is an equidigital number, since it uses as much as digits as its factorization.
20242331 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 20242331 is about 4499.1478081966. The cubic root of 20242331 is about 272.5336759436.
Adding to 20242331 its reverse (13324202), we get a palindrome (33566533).
The spelling of 20242331 in words is "twenty million, two hundred forty-two thousand, three hundred thirty-one".
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