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144350449 = 557259157
BaseRepresentation
bin10001001101010…
…01110011110001
3101001121202120221
420212221303301
5243423203244
622153533041
73401646535
oct1046516361
9331552527
10144350449
11745336a1
1240414181
1323ba1589
1415257bc5
15ca15784
hex89a9cf1

144350449 has 4 divisors (see below), whose sum is σ = 144610164. Its totient is φ = 144090736.

The previous prime is 144350411. The next prime is 144350497. The reversal of 144350449 is 944053441.

144350449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944053441 = 5021188021.

It can be written as a sum of positive squares in 2 ways, for example, as 8208225 + 136142224 = 2865^2 + 11668^2 .

It is a cyclic number.

It is not a de Polignac number, because 144350449 - 29 = 144349937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144350149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129022 + ... + 130135.

It is an arithmetic number, because the mean of its divisors is an integer number (36152541).

Almost surely, 2144350449 is an apocalyptic number.

It is an amenable number.

144350449 is a deficient number, since it is larger than the sum of its proper divisors (259715).

144350449 is an equidigital number, since it uses as much as digits as its factorization.

144350449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259714.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 144350449 is about 12014.5931683099. The cubic root of 144350449 is about 524.5731363180.

The spelling of 144350449 in words is "one hundred forty-four million, three hundred fifty thousand, four hundred forty-nine".

Divisors: 1 557 259157 144350449