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144430144 = 262256721
BaseRepresentation
bin10001001101111…
…01010001000000
3101001202210220121
420212331101000
5243433231034
622155350024
73402431065
oct1046752100
9331683817
10144430144
1174588561
1240452314
1323bcb931
1415278c6c
15ca2e1b4
hex89bd440

144430144 has 14 divisors (see below), whose sum is σ = 286603694. Its totient is φ = 72215040.

The previous prime is 144430093. The next prime is 144430151. The reversal of 144430144 is 441034441.

It is a happy number.

144430144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 88360000 + 56070144 = 9400^2 + 7488^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128297 + ... + 1128424.

Almost surely, 2144430144 is an apocalyptic number.

It is an amenable number.

144430144 is a deficient number, since it is larger than the sum of its proper divisors (142173550).

144430144 is an equidigital number, since it uses as much as digits as its factorization.

144430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256733 (or 2256723 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 144430144 is about 12017.9093023704. The cubic root of 144430144 is about 524.6696564308.

Adding to 144430144 its reverse (441034441), we get a palindrome (585464585).

The spelling of 144430144 in words is "one hundred forty-four million, four hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 2256721 4513442 9026884 18053768 36107536 72215072 144430144