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144503441 = 915115791
BaseRepresentation
bin10001001110011…
…11001010010001
3101001220112110022
420213033022101
5243443102231
622201113225
73403154555
oct1047171221
9331815408
10144503441
1174628635
1240488815
1323c260c4
1415297865
15ca45c7b
hex89cf291

144503441 has 4 divisors (see below), whose sum is σ = 144528384. Its totient is φ = 144478500.

The previous prime is 144503423. The next prime is 144503453. The reversal of 144503441 is 144305441.

It is a happy number.

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 144503441 - 26 = 144503377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144503441.

It is not an unprimeable number, because it can be changed into a prime (144503141) 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, 1256 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (36132096).

Almost surely, 2144503441 is an apocalyptic number.

It is an amenable number.

144503441 is a deficient number, since it is larger than the sum of its proper divisors (24943).

144503441 is an equidigital number, since it uses as much as digits as its factorization.

144503441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24942.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 144503441 is about 12020.9584060507. The cubic root of 144503441 is about 524.7583964659.

Adding to 144503441 its reverse (144305441), we get a palindrome (288808882).

The spelling of 144503441 in words is "one hundred forty-four million, five hundred three thousand, four hundred forty-one".

Divisors: 1 9151 15791 144503441