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144222043 = 724368449
BaseRepresentation
bin10001001100010…
…10011101011011
3101001101020110011
420212022131123
5243410101133
622151102351
73400603300
oct1046123533
9331336404
10144222043
1174456179
12403719b7
1323b57cb4
14152230a7
15c9dc6cd
hex898a75b

144222043 has 12 divisors (see below), whose sum is σ = 171672600. Its totient is φ = 120742272.

The previous prime is 144222037. The next prime is 144222047. The reversal of 144222043 is 340222441.

It is a happy number.

144222043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144222043 - 25 = 144222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144222047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32118 + ... + 36331.

It is an arithmetic number, because the mean of its divisors is an integer number (14306050).

Almost surely, 2144222043 is an apocalyptic number.

144222043 is a deficient number, since it is larger than the sum of its proper divisors (27450557).

144222043 is an equidigital number, since it uses as much as digits as its factorization.

144222043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68506 (or 68499 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144222043 is about 12009.2482279283. The cubic root of 144222043 is about 524.4175466374.

Adding to 144222043 its reverse (340222441), we get a palindrome (484444484).

The spelling of 144222043 in words is "one hundred forty-four million, two hundred twenty-two thousand, forty-three".

Divisors: 1 7 43 49 301 2107 68449 479143 2943307 3354001 20603149 144222043