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2243442231 = 3383090453
BaseRepresentation
bin1000010110111000…
…0011011000110111
312210100102200012000
42011232003120313
514043310122411
61010340430343
7106410641622
oct20556033067
95710380160
102243442231
11a51401398
125273a83b3
13299a31c14
14173d48db9
15d1e4d956
hex85b83637

2243442231 has 8 divisors (see below), whose sum is σ = 3323618160. Its totient is φ = 1495628136.

The previous prime is 2243442197. The next prime is 2243442259. The reversal of 2243442231 is 1322443422.

2243442231 is a `hidden beast` number, since 2 + 2 + 434 + 4 + 223 + 1 = 666.

2243442231 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2243442231 - 217 = 2243311159 is a prime.

It is a super-2 number, since 2×22434422312 = 10066066087668514722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 83090453 = 2243442231 / (2 + 2 + 4 + 3 + 4 + 4 + 2 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 2243442195 and 2243442204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243442431) 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, 41545200 + ... + 41545253.

It is an arithmetic number, because the mean of its divisors is an integer number (415452270).

Almost surely, 22243442231 is an apocalyptic number.

2243442231 is a deficient number, since it is larger than the sum of its proper divisors (1080175929).

2243442231 is an equidigital number, since it uses as much as digits as its factorization.

2243442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83090462 (or 83090456 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 2243442231 is about 47364.9895070188. The cubic root of 2243442231 is about 1309.0964052129.

Adding to 2243442231 its reverse (1322443422), we get a palindrome (3565885653).

The spelling of 2243442231 in words is "two billion, two hundred forty-three million, four hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 27 83090453 249271359 747814077 2243442231