Base | Representation |
---|---|
bin | 1000001101100110… |
… | …1010010100010111 |
3 | 12200122020100102021 |
4 | 2003121222110113 |
5 | 14003330322411 |
6 | 1002430554011 |
7 | 105426204553 |
oct | 20331522427 |
9 | 5618210367 |
10 | 2204542231 |
11 | a31452231 |
12 | 516368907 |
13 | 291961c78 |
14 | 16cb00863 |
15 | cd817a71 |
hex | 8366a517 |
2204542231 has 4 divisors (see below), whose sum is σ = 2206942000. Its totient is φ = 2202142464.
The previous prime is 2204542211. The next prime is 2204542247. The reversal of 2204542231 is 1322454022.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322454022 = 2 ⋅661227011.
It is a cyclic number.
It is not a de Polignac number, because 2204542231 - 213 = 2204534039 is a prime.
It is a super-2 number, since 2×22045422312 = 9720012896524914722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2204542196 and 2204542205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2204542211) 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, 1198506 + ... + 1200343.
It is an arithmetic number, because the mean of its divisors is an integer number (551735500).
Almost surely, 22204542231 is an apocalyptic number.
2204542231 is a deficient number, since it is larger than the sum of its proper divisors (2399769).
2204542231 is an equidigital number, since it uses as much as digits as its factorization.
2204542231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2399768.
The product of its (nonzero) digits is 3840, while the sum is 25.
The square root of 2204542231 is about 46952.5529763824. The cubic root of 2204542231 is about 1301.4859204491.
Adding to 2204542231 its reverse (1322454022), we get a palindrome (3526996253).
The spelling of 2204542231 in words is "two billion, two hundred four million, five hundred forty-two thousand, two hundred thirty-one".
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