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144424143 = 32431572377
BaseRepresentation
bin10001001101110…
…11110011001111
3101001202111200100
420212323303033
5243433033033
622155302143
73402404433
oct1046736317
9331674610
10144424143
1174583aa6
124044a953
1323bc8c96
14152769c3
15ca2c513
hex89bbccf

144424143 has 24 divisors (see below), whose sum is σ = 214914128. Its totient is φ = 93405312.

The previous prime is 144424139. The next prime is 144424151. The reversal of 144424143 is 341424441.

It is not a de Polignac number, because 144424143 - 22 = 144424139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144424103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59571 + ... + 61947.

Almost surely, 2144424143 is an apocalyptic number.

144424143 is a deficient number, since it is larger than the sum of its proper divisors (70489985).

144424143 is a wasteful number, since it uses less digits than its factorization.

144424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583 (or 2580 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 144424143 is about 12017.6596307268. The cubic root of 144424143 is about 524.6623897432.

Adding to 144424143 its reverse (341424441), we get a palindrome (485848584).

The spelling of 144424143 in words is "one hundred forty-four million, four hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 9 43 129 157 387 471 1413 2377 6751 7131 20253 21393 60759 102211 306633 373189 919899 1119567 3358701 16047127 48141381 144424143