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144623 = 294987
BaseRepresentation
bin100011010011101111
321100101102
4203103233
514111443
63033315
71141433
oct432357
9240342
10144623
1199726
126b83b
1350a9b
143a9c3
152ccb8
hex234ef

144623 has 4 divisors (see below), whose sum is σ = 149640. Its totient is φ = 139608.

The previous prime is 144611. The next prime is 144629. The reversal of 144623 is 326441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144623 - 212 = 140527 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 144595 and 144604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2465 + ... + 2522.

It is an arithmetic number, because the mean of its divisors is an integer number (37410).

2144623 is an apocalyptic number.

144623 is a deficient number, since it is larger than the sum of its proper divisors (5017).

144623 is an equidigital number, since it uses as much as digits as its factorization.

144623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016.

The product of its digits is 576, while the sum is 20.

The square root of 144623 is about 380.2933078559. The cubic root of 144623 is about 52.4903081127.

It can be divided in two parts, 144 and 623, that added together give a palindrome (767).

The spelling of 144623 in words is "one hundred forty-four thousand, six hundred twenty-three".

Divisors: 1 29 4987 144623