Base | Representation |
---|---|
bin | 10010111001111110… |
… | …110010000101100111 |
3 | 1221101202020112211120 |
4 | 102321332302011213 |
5 | 313033312042411 |
6 | 13154205505023 |
7 | 1316025051450 |
oct | 227176620547 |
9 | 57352215746 |
10 | 20300112231 |
11 | 867797a863 |
12 | 3b26572173 |
13 | 1bb6914839 |
14 | da80c8127 |
15 | 7dc29d106 |
hex | 4b9fb2167 |
20300112231 has 8 divisors (see below), whose sum is σ = 30933504384. Its totient is φ = 11600064120.
The previous prime is 20300112193. The next prime is 20300112299. The reversal of 20300112231 is 13221100302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20300112231 - 219 = 20299587943 is a prime.
It is a super-2 number, since 2×203001122312 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 20300112231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20300110231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483335985 + ... + 483336026.
It is an arithmetic number, because the mean of its divisors is an integer number (3866688048).
Almost surely, 220300112231 is an apocalyptic number.
20300112231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20300112231 is a deficient number, since it is larger than the sum of its proper divisors (10633392153).
20300112231 is an equidigital number, since it uses as much as digits as its factorization.
20300112231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 966672021.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20300112231 its reverse (13221100302), we get a palindrome (33521212533).
The spelling of 20300112231 in words is "twenty billion, three hundred million, one hundred twelve thousand, two hundred thirty-one".
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