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2230444221 = 3743481407
BaseRepresentation
bin1000010011110001…
…1110000010111101
312202102222022021020
42010330132002331
514031443203341
61005154054353
7106162314555
oct20474360275
95672868236
102230444221
11a45033835
12522b7a3b9
132971308a5
14172324165
15d0c32566
hex84f1e0bd

2230444221 has 4 divisors (see below), whose sum is σ = 2973925632. Its totient is φ = 1486962812.

The previous prime is 2230444169. The next prime is 2230444247. The reversal of 2230444221 is 1224440322.

2230444221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2230444221 - 211 = 2230442173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2230444191 and 2230444200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230444261) 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, 371740701 + ... + 371740706.

It is an arithmetic number, because the mean of its divisors is an integer number (743481408).

Almost surely, 22230444221 is an apocalyptic number.

It is an amenable number.

2230444221 is a deficient number, since it is larger than the sum of its proper divisors (743481411).

2230444221 is an equidigital number, since it uses as much as digits as its factorization.

2230444221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743481410.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2230444221 is about 47227.5790296306. The cubic root of 2230444221 is about 1306.5633014325.

Adding to 2230444221 its reverse (1224440322), we get a palindrome (3454884543).

The spelling of 2230444221 in words is "two billion, two hundred thirty million, four hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 3 743481407 2230444221