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144045223 = 731816469
BaseRepresentation
bin10001001010111…
…11010010100111
3101001001020220021
420211133102213
5243333421343
622143220011
73366235630
oct1045372247
9331036807
10144045223
1174345343
12402a7607
1323ac567a
14151b8887
15c9a50ed
hex895f4a7

144045223 has 8 divisors (see below), whose sum is σ = 164700320. Its totient is φ = 123409440.

The previous prime is 144045221. The next prime is 144045241. The reversal of 144045223 is 322540441.

It is a happy number.

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

It is not a de Polignac number, because 144045223 - 21 = 144045221 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 (144045221) 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, 19033 + ... + 25501.

It is an arithmetic number, because the mean of its divisors is an integer number (20587540).

Almost surely, 2144045223 is an apocalyptic number.

144045223 is a deficient number, since it is larger than the sum of its proper divisors (20655097).

144045223 is an equidigital number, since it uses as much as digits as its factorization.

144045223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9657.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 144045223 is about 12001.8841437501. The cubic root of 144045223 is about 524.2031424452.

Adding to 144045223 its reverse (322540441), we get a palindrome (466585664).

The spelling of 144045223 in words is "one hundred forty-four million, forty-five thousand, two hundred twenty-three".

Divisors: 1 7 3181 6469 22267 45283 20577889 144045223