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144623132 = 22136726449
BaseRepresentation
bin10001001111011…
…00011000011100
3101002010121122022
420213230120130
5244010420012
622203435312
73404163533
oct1047543034
9332117568
10144623132
11746aa555
1240525b38
1323c68724
14152c931a
15ca6b472
hex89ec61c

144623132 has 12 divisors (see below), whose sum is σ = 253285200. Its totient is φ = 72255936.

The previous prime is 144623123. The next prime is 144623137. The reversal of 144623132 is 231326441.

144623132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144623137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7757 + ... + 18692.

It is an arithmetic number, because the mean of its divisors is an integer number (21107100).

Almost surely, 2144623132 is an apocalyptic number.

It is an amenable number.

144623132 is a deficient number, since it is larger than the sum of its proper divisors (108662068).

144623132 is a wasteful number, since it uses less digits than its factorization.

144623132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27820 (or 27818 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 144623132 is about 12025.9358055829. The cubic root of 144623132 is about 524.9032408226.

Adding to 144623132 its reverse (231326441), we get a palindrome (375949573).

The spelling of 144623132 in words is "one hundred forty-four million, six hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 1367 2734 5468 26449 52898 105796 36155783 72311566 144623132