Base | Representation |
---|---|
bin | 10010110100000011… |
… | …001000101111001111 |
3 | 1221010210222022101122 |
4 | 102310003020233033 |
5 | 312332322342122 |
6 | 13140252431155 |
7 | 1313406120143 |
oct | 226403105717 |
9 | 57123868348 |
10 | 20200590287 |
11 | 8626785519 |
12 | 3ab91784bb |
13 | 1b9c10a807 |
14 | d98bbd223 |
15 | 7d3690142 |
hex | 4b40c8bcf |
20200590287 has 4 divisors (see below), whose sum is σ = 20202655320. Its totient is φ = 20198525256.
The previous prime is 20200590281. The next prime is 20200590299. The reversal of 20200590287 is 78209500202.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78209500202 = 2 ⋅39104750101.
It is a cyclic number.
It is not a de Polignac number, because 20200590287 - 212 = 20200586191 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20200590281) 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 3 ways as a sum of consecutive naturals, for example, 1017773 + ... + 1037430.
It is an arithmetic number, because the mean of its divisors is an integer number (5050663830).
Almost surely, 220200590287 is an apocalyptic number.
20200590287 is a deficient number, since it is larger than the sum of its proper divisors (2065033).
20200590287 is an equidigital number, since it uses as much as digits as its factorization.
20200590287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2065032.
The product of its (nonzero) digits is 20160, while the sum is 35.
It can be divided in two parts, 202005 and 90287, that added together give a palindrome (292292).
The spelling of 20200590287 in words is "twenty billion, two hundred million, five hundred ninety thousand, two hundred eighty-seven".
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