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144304223 = 761337949
BaseRepresentation
bin10001001100111…
…10100001011111
3101001112102011212
420212132201133
5243420213343
622152535035
73401365010
oct1046364137
9331472155
10144304223
1174501998
12403b147b
1323b8651b
1415245007
15ca06c18
hex899e85f

144304223 has 8 divisors (see below), whose sum is σ = 167623200. Its totient is φ = 121661280.

The previous prime is 144304201. The next prime is 144304267. The reversal of 144304223 is 322403441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144304223 - 212 = 144300127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144300223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168548 + ... + 169401.

It is an arithmetic number, because the mean of its divisors is an integer number (20952900).

Almost surely, 2144304223 is an apocalyptic number.

144304223 is a deficient number, since it is larger than the sum of its proper divisors (23318977).

144304223 is an equidigital number, since it uses as much as digits as its factorization.

144304223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338017.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 144304223 is about 12012.6692703995. The cubic root of 144304223 is about 524.5171348602.

Adding to 144304223 its reverse (322403441), we get a palindrome (466707664).

The spelling of 144304223 in words is "one hundred forty-four million, three hundred four thousand, two hundred twenty-three".

Divisors: 1 7 61 427 337949 2365643 20614889 144304223