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144230243 = 283750839
BaseRepresentation
bin10001001100011…
…00011101100011
3101001101122200212
420212030131203
5243410331433
622151204335
73400636223
oct1046143543
9331348625
10144230243
1174461353
12403766ab
1323b5b951
1415226083
15c9ded48
hex898c763

144230243 has 4 divisors (see below), whose sum is σ = 144283920. Its totient is φ = 144176568.

The previous prime is 144230239. The next prime is 144230267. The reversal of 144230243 is 342032441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342032441 = 1454923509.

It is a cyclic number.

It is not a de Polignac number, because 144230243 - 22 = 144230239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144235243) 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 3 ways as a sum of consecutive naturals, for example, 22583 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (36070980).

Almost surely, 2144230243 is an apocalyptic number.

144230243 is a deficient number, since it is larger than the sum of its proper divisors (53677).

144230243 is an equidigital number, since it uses as much as digits as its factorization.

144230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53676.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 144230243 is about 12009.5896266275. The cubic root of 144230243 is about 524.4274853456.

Adding to 144230243 its reverse (342032441), we get a palindrome (486262684).

The spelling of 144230243 in words is "one hundred forty-four million, two hundred thirty thousand, two hundred forty-three".

Divisors: 1 2837 50839 144230243