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144023223 = 348007741
BaseRepresentation
bin10001001010110…
…01111010110111
3101001000010201110
420211121322313
5243332220343
622142530103
73366114531
oct1045317267
9331003643
10144023223
117432a863
1240296933
1323ab8656
14151b0851
15c99d833
hex8959eb7

144023223 has 4 divisors (see below), whose sum is σ = 192030968. Its totient is φ = 96015480.

The previous prime is 144023219. The next prime is 144023227. The reversal of 144023223 is 322320441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322320441 = 3107440147.

It is an interprime number because it is at equal distance from previous prime (144023219) and next prime (144023227).

It is not a de Polignac number, because 144023223 - 22 = 144023219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144023223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144023227) 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, 24003868 + ... + 24003873.

It is an arithmetic number, because the mean of its divisors is an integer number (48007742).

Almost surely, 2144023223 is an apocalyptic number.

144023223 is a deficient number, since it is larger than the sum of its proper divisors (48007745).

144023223 is an equidigital number, since it uses as much as digits as its factorization.

144023223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48007744.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 144023223 is about 12000.9675859907. The cubic root of 144023223 is about 524.1764539371.

Adding to 144023223 its reverse (322320441), we get a palindrome (466343664).

The spelling of 144023223 in words is "one hundred forty-four million, twenty-three thousand, two hundred twenty-three".

Divisors: 1 3 48007741 144023223