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2443230243 = 3390490009
BaseRepresentation
bin1001000110100000…
…1011110000100011
320022021100221211000
42101220023300203
520000431331433
61042234523043
7114355054146
oct22150136043
96267327730
102443230243
11104415a053
12582296483
132cc24388c
141926b405d
15e4765113
hex91a0bc23

2443230243 has 8 divisors (see below), whose sum is σ = 3619600400. Its totient is φ = 1628820144.

The previous prime is 2443230227. The next prime is 2443230289. The reversal of 2443230243 is 3420323442.

It is not a de Polignac number, because 2443230243 - 24 = 2443230227 is a prime.

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: 90490009 = 2443230243 / (2 + 4 + 4 + 3 + 2 + 3 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2443238243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45244978 + ... + 45245031.

It is an arithmetic number, because the mean of its divisors is an integer number (452450050).

Almost surely, 22443230243 is an apocalyptic number.

2443230243 is a deficient number, since it is larger than the sum of its proper divisors (1176370157).

2443230243 is an equidigital number, since it uses as much as digits as its factorization.

2443230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90490018 (or 90490012 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 2443230243 is about 49429.0425053935. The cubic root of 2443230243 is about 1346.8569299586.

Adding to 2443230243 its reverse (3420323442), we get a palindrome (5863553685).

The spelling of 2443230243 in words is "two billion, four hundred forty-three million, two hundred thirty thousand, two hundred forty-three".

Divisors: 1 3 9 27 90490009 271470027 814410081 2443230243