Base | Representation |
---|---|
bin | 100111001011… |
… | …0101010010010 |
3 | 1102122112122121 |
4 | 1032112222102 |
5 | 20224240200 |
6 | 2012124454 |
7 | 336405346 |
oct | 116265222 |
9 | 42575577 |
10 | 20540050 |
11 | 1065a053 |
12 | 6a6672a |
13 | 434219b |
14 | 2a29626 |
15 | 1c0ae1a |
hex | 1396a92 |
20540050 has 12 divisors (see below), whose sum is σ = 38204586. Its totient is φ = 8216000.
The previous prime is 20540017. The next prime is 20540053. The reversal of 20540050 is 5004502.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 9603801 + 10936249 = 3099^2 + 3307^2 .
It is not an unprimeable number, because it can be changed into a prime (20540053) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205351 + ... + 205450.
Almost surely, 220540050 is an apocalyptic number.
20540050 is a deficient number, since it is larger than the sum of its proper divisors (17664536).
20540050 is a wasteful number, since it uses less digits than its factorization.
20540050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 410813 (or 410808 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 16.
The square root of 20540050 is about 4532.1131936438. The cubic root of 20540050 is about 273.8632969313.
Adding to 20540050 its reverse (5004502), we get a palindrome (25544552).
The spelling of 20540050 in words is "twenty million, five hundred forty thousand, fifty".
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