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440544141 = 3279761417
BaseRepresentation
bin11010010000100…
…010101110001101
31010200221221221200
4122100202232031
51400234403031
6111414220113
713626364152
oct3220425615
91120857850
10440544141
11206748374
12103654639
1370368a0b
144271a229
1528a218e6
hex1a422b8d

440544141 has 12 divisors (see below), whose sum is σ = 637150332. Its totient is φ = 293322816.

The previous prime is 440544059. The next prime is 440544179. The reversal of 440544141 is 141445044.

It can be written as a sum of positive squares in 2 ways, for example, as 175668516 + 264875625 = 13254^2 + 16275^2 .

It is not a de Polignac number, because 440544141 - 211 = 440542093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440544541) 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 11 ways as a sum of consecutive naturals, for example, 23536 + ... + 37881.

It is an arithmetic number, because the mean of its divisors is an integer number (53095861).

Almost surely, 2440544141 is an apocalyptic number.

It is an amenable number.

440544141 is a deficient number, since it is larger than the sum of its proper divisors (196606191).

440544141 is a wasteful number, since it uses less digits than its factorization.

440544141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62220 (or 62217 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 440544141 is about 20989.1434079621. The cubic root of 440544141 is about 760.9038997128.

Adding to 440544141 its reverse (141445044), we get a palindrome (581989185).

The spelling of 440544141 in words is "four hundred forty million, five hundred forty-four thousand, one hundred forty-one".

Divisors: 1 3 9 797 2391 7173 61417 184251 552753 48949349 146848047 440544141