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144450447 = 31972331049
BaseRepresentation
bin10001001110000…
…10001110001111
3101001210211202120
420213002032033
5243434403242
622200024023
73402544221
oct1047021617
9331724676
10144450447
11745a1839
1240462013
1323c07c4b
1415282411
15ca351ec
hex89c238f

144450447 has 16 divisors (see below), whose sum is σ = 194594400. Its totient is φ = 95309312.

The previous prime is 144450443. The next prime is 144450451. The reversal of 144450447 is 744054441.

It is an interprime number because it is at equal distance from previous prime (144450443) and next prime (144450451).

It is a cyclic number.

It is not a de Polignac number, because 144450447 - 22 = 144450443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144450443) 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 15 ways as a sum of consecutive naturals, for example, 137179 + ... + 138227.

It is an arithmetic number, because the mean of its divisors is an integer number (12162150).

Almost surely, 2144450447 is an apocalyptic number.

144450447 is a deficient number, since it is larger than the sum of its proper divisors (50143953).

144450447 is a wasteful number, since it uses less digits than its factorization.

144450447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 35840, while the sum is 33.

The square root of 144450447 is about 12018.7539703582. The cubic root of 144450447 is about 524.6942401007.

The spelling of 144450447 in words is "one hundred forty-four million, four hundred fifty thousand, four hundred forty-seven".

Divisors: 1 3 197 233 591 699 1049 3147 45901 137703 206653 244417 619959 733251 48150149 144450447