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144321323 = 195173973
BaseRepresentation
bin10001001101000…
…10101100101011
3101001120021122012
420212202230223
5243421240243
622153150135
73401465606
oct1046425453
9331507565
10144321323
1174513823
12403bb34b
1323b91243
141524b33d
15ca0bd18
hex89a2b2b

144321323 has 4 divisors (see below), whose sum is σ = 144397248. Its totient is φ = 144245400.

The previous prime is 144321311. The next prime is 144321329. The reversal of 144321323 is 323123441.

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 144321323 - 220 = 143272747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144321329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35036 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (36099312).

Almost surely, 2144321323 is an apocalyptic number.

144321323 is a deficient number, since it is larger than the sum of its proper divisors (75925).

144321323 is an equidigital number, since it uses as much as digits as its factorization.

144321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75924.

The product of its digits is 1728, while the sum is 23.

The square root of 144321323 is about 12013.3809978707. The cubic root of 144321323 is about 524.5378524077.

Adding to 144321323 its reverse (323123441), we get a palindrome (467444764).

The spelling of 144321323 in words is "one hundred forty-four million, three hundred twenty-one thousand, three hundred twenty-three".

Divisors: 1 1951 73973 144321323