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144513128 = 23173104417
BaseRepresentation
bin10001001110100…
…01100001101000
3101001221000202002
420213101201220
5243443410003
622201230132
73403225034
oct1047214150
9331830662
10144513128
1174634941
1240492348
1323c2a636
141529b1c4
15ca48a88
hex89d1868

144513128 has 16 divisors (see below), whose sum is σ = 272530980. Its totient is φ = 71838208.

The previous prime is 144513121. The next prime is 144513133. The reversal of 144513128 is 821315441.

It can be written as a sum of positive squares in 2 ways, for example, as 144048004 + 465124 = 12002^2 + 682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144513128.

It is not an unprimeable number, because it can be changed into a prime (144513121) 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, 50825 + ... + 53592.

Almost surely, 2144513128 is an apocalyptic number.

It is an amenable number.

144513128 is a deficient number, since it is larger than the sum of its proper divisors (128017852).

144513128 is a wasteful number, since it uses less digits than its factorization.

144513128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104596 (or 104592 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 144513128 is about 12021.3613205826. The cubic root of 144513128 is about 524.7701221867.

Adding to 144513128 its reverse (821315441), we get a palindrome (965828569).

The spelling of 144513128 in words is "one hundred forty-four million, five hundred thirteen thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 173 346 692 1384 104417 208834 417668 835336 18064141 36128282 72256564 144513128