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144340025 = 5214938749
BaseRepresentation
bin10001001101001…
…11010000111001
3101001121020021212
420212213100321
5243422340100
622153412505
73401604254
oct1046472071
9331536255
10144340025
1174526885
124040a135
1323b998cb
141525409b
15ca12635
hex89a7439

144340025 has 12 divisors (see below), whose sum is σ = 180187500. Its totient is φ = 114694080.

The previous prime is 144340003. The next prime is 144340033. The reversal of 144340025 is 520043441.

It can be written as a sum of positive squares in 6 ways, for example, as 17732521 + 126607504 = 4211^2 + 11252^2 .

It is not a de Polignac number, because 144340025 - 210 = 144339001 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 15650 + ... + 23099.

It is an arithmetic number, because the mean of its divisors is an integer number (15015625).

Almost surely, 2144340025 is an apocalyptic number.

It is an amenable number.

144340025 is a deficient number, since it is larger than the sum of its proper divisors (35847475).

144340025 is a wasteful number, since it uses less digits than its factorization.

144340025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38908 (or 38903 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 144340025 is about 12014.1593546948. The cubic root of 144340025 is about 524.5605089886.

Adding to 144340025 its reverse (520043441), we get a palindrome (664383466).

The spelling of 144340025 in words is "one hundred forty-four million, three hundred forty thousand, twenty-five".

Divisors: 1 5 25 149 745 3725 38749 193745 968725 5773601 28868005 144340025