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144244325 = 5228120533
BaseRepresentation
bin10001001100011…
…11111001100101
3101001102101000102
420212033321211
5243411304300
622151353445
73401025251
oct1046177145
9331371012
10144244325
1174470995
1240382885
1323b65194
141522b261
15c9e40d5
hex898fe65

144244325 has 12 divisors (see below), whose sum is σ = 179508228. Its totient is φ = 114979200.

The previous prime is 144244319. The next prime is 144244327. The reversal of 144244325 is 523442441.

It can be written as a sum of positive squares in 6 ways, for example, as 268324 + 143976001 = 518^2 + 11999^2 .

It is not a de Polignac number, because 144244325 - 210 = 144243301 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144244327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3242 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (14959019).

Almost surely, 2144244325 is an apocalyptic number.

It is an amenable number.

144244325 is a deficient number, since it is larger than the sum of its proper divisors (35263903).

144244325 is a wasteful number, since it uses less digits than its factorization.

144244325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20824 (or 20819 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 144244325 is about 12010.1758937994. The cubic root of 144244325 is about 524.4445523799. Note that the first 3 decimals are identical.

Adding to 144244325 its reverse (523442441), we get a palindrome (667686766).

The spelling of 144244325 in words is "one hundred forty-four million, two hundred forty-four thousand, three hundred twenty-five".

Divisors: 1 5 25 281 1405 7025 20533 102665 513325 5769773 28848865 144244325