Base | Representation |
---|---|
bin | 10010101001010011… |
… | …000111011110100101 |
3 | 1220200020121001122222 |
4 | 102221103013132211 |
5 | 312000134330203 |
6 | 13110331002125 |
7 | 1306056101435 |
oct | 225123073645 |
9 | 56606531588 |
10 | 20020230053 |
11 | 854399717a |
12 | 3a68899345 |
13 | 1b7093b995 |
14 | d7cc702c5 |
15 | 7c2915038 |
hex | 4a94c77a5 |
20020230053 has 4 divisors (see below), whose sum is σ = 20261437728. Its totient is φ = 19779022380.
The previous prime is 20020230031. The next prime is 20020230133. The reversal of 20020230053 is 35003202002.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35003202002 = 2 ⋅17501601001.
It is a cyclic number.
It is not a de Polignac number, because 20020230053 - 220 = 20019181477 is a prime.
It is a super-2 number, since 2×200202300532 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020230253) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120603713 + ... + 120603878.
It is an arithmetic number, because the mean of its divisors is an integer number (5065359432).
Almost surely, 220020230053 is an apocalyptic number.
It is an amenable number.
20020230053 is a deficient number, since it is larger than the sum of its proper divisors (241207675).
20020230053 is an equidigital number, since it uses as much as digits as its factorization.
20020230053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 241207674.
The product of its (nonzero) digits is 360, while the sum is 17.
Adding to 20020230053 its reverse (35003202002), we get a palindrome (55023432055).
The spelling of 20020230053 in words is "twenty billion, twenty million, two hundred thirty thousand, fifty-three".
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