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2144534441 = 7318773331
BaseRepresentation
bin111111111010010…
…1111111110101001
312112110022122012112
41333310233332221
513343000100231
6552444452105
7104100146000
oct17764577651
95473278175
102144534441
11a00596515
124ba24a035
132823b15ba
14164b5dc37
15c841292b
hex7fd2ffa9

2144534441 has 16 divisors (see below), whose sum is σ = 2502998400. Its totient is φ = 1836641520.

The previous prime is 2144534437. The next prime is 2144534473. The reversal of 2144534441 is 1444354412.

It is not a de Polignac number, because 2144534441 - 22 = 2144534437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2144534398 and 2144534407.

It is not an unprimeable number, because it can be changed into a prime (2144534641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642146 + ... + 645476.

It is an arithmetic number, because the mean of its divisors is an integer number (156437400).

Almost surely, 22144534441 is an apocalyptic number.

It is an amenable number.

2144534441 is a deficient number, since it is larger than the sum of its proper divisors (358463959).

2144534441 is an equidigital number, since it uses as much as digits as its factorization.

2144534441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5215 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 2144534441 is about 46309.1183353775. The cubic root of 2144534441 is about 1289.5682791055.

Adding to 2144534441 its reverse (1444354412), we get a palindrome (3588888853).

The spelling of 2144534441 in words is "two billion, one hundred forty-four million, five hundred thirty-four thousand, four hundred forty-one".

Divisors: 1 7 49 343 1877 3331 13139 23317 91973 163219 643811 1142533 6252287 43766009 306362063 2144534441