Base | Representation |
---|---|
bin | 10011000001101111… |
… | …001111010010001001 |
3 | 1221201211010111111001 |
4 | 103001233033102021 |
5 | 313320121131431 |
6 | 13215135135001 |
7 | 1322165206234 |
oct | 230157172211 |
9 | 57654114431 |
10 | 20430255241 |
11 | 873438a170 |
12 | 3b62074461 |
13 | 1c07880436 |
14 | dbb4c441b |
15 | 7e8908e61 |
hex | 4c1bcf489 |
20430255241 has 8 divisors (see below), whose sum is σ = 23256575424. Its totient is φ = 17765439120.
The previous prime is 20430255233. The next prime is 20430255259. The reversal of 20430255241 is 14255203402.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20430255241 - 23 = 20430255233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20430255271) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40375746 + ... + 40376251.
It is an arithmetic number, because the mean of its divisors is an integer number (2907071928).
Almost surely, 220430255241 is an apocalyptic number.
It is an amenable number.
20430255241 is a deficient number, since it is larger than the sum of its proper divisors (2826320183).
20430255241 is a wasteful number, since it uses less digits than its factorization.
20430255241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80752031.
The product of its (nonzero) digits is 9600, while the sum is 28.
Adding to 20430255241 its reverse (14255203402), we get a palindrome (34685458643).
The spelling of 20430255241 in words is "twenty billion, four hundred thirty million, two hundred fifty-five thousand, two hundred forty-one".
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