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2223313221 = 31096799123
BaseRepresentation
bin1000010010000101…
…0001000101000101
312201221120000101010
42010201101011011
514023132010341
61004341152433
7106044564513
oct20441210505
95657500333
102223313221
11a41003148
125206bb719
13295804b6c
141713c94b3
15d02c4716
hex84851145

2223313221 has 8 divisors (see below), whose sum is σ = 2991614560. Its totient is φ = 1468610352.

The previous prime is 2223313129. The next prime is 2223313223. The reversal of 2223313221 is 1223133222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2223313221 - 27 = 2223313093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223313223) 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, 3399235 + ... + 3399888.

It is an arithmetic number, because the mean of its divisors is an integer number (373951820).

Almost surely, 22223313221 is an apocalyptic number.

It is an amenable number.

2223313221 is a deficient number, since it is larger than the sum of its proper divisors (768301339).

2223313221 is a wasteful number, since it uses less digits than its factorization.

2223313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799235.

The product of its digits is 864, while the sum is 21.

The square root of 2223313221 is about 47152.0224486713. The cubic root of 2223313221 is about 1305.1694012414.

Adding to 2223313221 its reverse (1223133222), we get a palindrome (3446446443).

The spelling of 2223313221 in words is "two billion, two hundred twenty-three million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 3 109 327 6799123 20397369 741104407 2223313221