Base | Representation |
---|---|
bin | 1000010010000101… |
… | …0101001110101101 |
3 | 12201221120212200202 |
4 | 2010201111032231 |
5 | 14023133031341 |
6 | 1004341403245 |
7 | 106044665210 |
oct | 20441251655 |
9 | 5657525622 |
10 | 2223330221 |
11 | a410149a2 |
12 | 520709525 |
13 | 29580c818 |
14 | 1713d1777 |
15 | d02c979b |
hex | 848553ad |
2223330221 has 8 divisors (see below), whose sum is σ = 2541521664. Its totient is φ = 1905282000.
The previous prime is 2223330173. The next prime is 2223330233. The reversal of 2223330221 is 1220333222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2223330221 - 26 = 2223330157 is a prime.
It is a super-2 number, since 2×22233302212 = 9886394543223817682, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 2223330193 and 2223330202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2223030221) 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, 170 + ... + 66683.
It is an arithmetic number, because the mean of its divisors is an integer number (317690208).
Almost surely, 22223330221 is an apocalyptic number.
It is an amenable number.
2223330221 is a deficient number, since it is larger than the sum of its proper divisors (318191443).
2223330221 is an equidigital number, since it uses as much as digits as its factorization.
2223330221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71611.
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 2223330221 is about 47152.2027163101. The cubic root of 2223330221 is about 1305.1727277817.
Adding to 2223330221 its reverse (1220333222), we get a palindrome (3443663443).
The spelling of 2223330221 in words is "two billion, two hundred twenty-three million, three hundred thirty thousand, two hundred twenty-one".
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