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144044243 = 720577749
BaseRepresentation
bin10001001010111…
…11000011010011
3101001001012112222
420211133003103
5243333403433
622143211255
73366233030
oct1045370323
9331035488
10144044243
1174344632
12402a6b2b
1323ac50a5
14151b8387
15c9a4b98
hex895f0d3

144044243 has 4 divisors (see below), whose sum is σ = 164622000. Its totient is φ = 123466488.

The previous prime is 144044227. The next prime is 144044261. The reversal of 144044243 is 342440441.

It is a happy number.

144044243 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 an emirpimes, since its reverse is a distinct semiprime: 342440441 = 748920063.

It is a cyclic number.

It is not a de Polignac number, because 144044243 - 24 = 144044227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144044273) 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, 10288868 + ... + 10288881.

It is an arithmetic number, because the mean of its divisors is an integer number (41155500).

Almost surely, 2144044243 is an apocalyptic number.

144044243 is a deficient number, since it is larger than the sum of its proper divisors (20577757).

144044243 is an equidigital number, since it uses as much as digits as its factorization.

144044243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20577756.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 144044243 is about 12001.8433167576. The cubic root of 144044243 is about 524.2019536513.

Adding to 144044243 its reverse (342440441), we get a palindrome (486484684).

The spelling of 144044243 in words is "one hundred forty-four million, forty-four thousand, two hundred forty-three".

Divisors: 1 7 20577749 144044243