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144224323 = 797180959
BaseRepresentation
bin10001001100010…
…11000001000011
3101001101100120121
420212023001003
5243410134243
622151121111
73400613035
oct1046130103
9331340517
10144224323
1174457961
1240373197
1323b59049
1415223c55
15c9dd1ed
hex898b043

144224323 has 4 divisors (see below), whose sum is σ = 144406080. Its totient is φ = 144042568.

The previous prime is 144224321. The next prime is 144224351. The reversal of 144224323 is 323422441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323422441 = 1468322027.

It is a cyclic number.

It is not a de Polignac number, because 144224323 - 21 = 144224321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144224321) 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, 89683 + ... + 91276.

It is an arithmetic number, because the mean of its divisors is an integer number (36101520).

Almost surely, 2144224323 is an apocalyptic number.

144224323 is a deficient number, since it is larger than the sum of its proper divisors (181757).

144224323 is an equidigital number, since it uses as much as digits as its factorization.

144224323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181756.

The product of its digits is 4608, while the sum is 25.

The square root of 144224323 is about 12009.3431543944. The cubic root of 144224323 is about 524.4203101209.

Adding to 144224323 its reverse (323422441), we get a palindrome (467646764).

The spelling of 144224323 in words is "one hundred forty-four million, two hundred twenty-four thousand, three hundred twenty-three".

Divisors: 1 797 180959 144224323