Search a number
-
+
144423 = 341783
BaseRepresentation
bin100011010000100111
321100010000
4203100213
514110143
63032343
71141026
oct432047
9240100
10144423
1199564
126b6b3
1350976
143a8bd
152cbd3
hex23427

144423 has 10 divisors (see below), whose sum is σ = 215864. Its totient is φ = 96228.

The previous prime is 144413. The next prime is 144427. The reversal of 144423 is 324441.

It is not a de Polignac number, because 144423 - 24 = 144407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144396 and 144405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144427) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 811 + ... + 972.

2144423 is an apocalyptic number.

144423 is a deficient number, since it is larger than the sum of its proper divisors (71441).

144423 is an equidigital number, since it uses as much as digits as its factorization.

144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1786 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 144423 is about 380.0302619529. The cubic root of 144423 is about 52.4661005647.

Adding to 144423 its sum of digits (18), we get a palindrome (144441).

Adding to 144423 its reverse (324441), we get a palindrome (468864).

The spelling of 144423 in words is "one hundred forty-four thousand, four hundred twenty-three", and thus it is an iban number.

Divisors: 1 3 9 27 81 1783 5349 16047 48141 144423