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144544132 = 22172125649
BaseRepresentation
bin10001001110110…
…01000110000100
3101001222121021101
420213121012010
5244000403012
622202025444
73403414315
oct1047310604
9331877241
10144544132
1174656167
12404a8284
1323c3b795
14152a860c
15ca52d57
hex89d9184

144544132 has 12 divisors (see below), whose sum is σ = 267831900. Its totient is φ = 68020736.

The previous prime is 144544109. The next prime is 144544133. The reversal of 144544132 is 231445441.

It can be written as a sum of positive squares in 2 ways, for example, as 107868996 + 36675136 = 10386^2 + 6056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144544132.

It is not an unprimeable number, because it can be changed into a prime (144544133) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1062757 + ... + 1062892.

It is an arithmetic number, because the mean of its divisors is an integer number (22319325).

Almost surely, 2144544132 is an apocalyptic number.

It is an amenable number.

144544132 is a deficient number, since it is larger than the sum of its proper divisors (123287768).

144544132 is a wasteful number, since it uses less digits than its factorization.

144544132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125670 (or 2125668 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 144544132 is about 12022.6507892395. The cubic root of 144544132 is about 524.8076477498.

Adding to 144544132 its reverse (231445441), we get a palindrome (375989573).

The spelling of 144544132 in words is "one hundred forty-four million, five hundred forty-four thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 2125649 4251298 8502596 36136033 72272066 144544132