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4431244431 = 337211118911
BaseRepresentation
bin1000010000001111…
…10110110010001111
3102102211011112121010
410020013312302033
533033344310211
62011412540303
7214544645655
oct41007666217
912384145533
104431244431
11197435a589
12a38021693
13558082533
1430072cdd5
151ae05b4a6
hex1081f6c8f

4431244431 has 16 divisors (see below), whose sum is σ = 6071205888. Its totient is φ = 2872807200.

The previous prime is 4431244417. The next prime is 4431244483. The reversal of 4431244431 is 1344421344.

It is not a de Polignac number, because 4431244431 - 27 = 4431244303 is a prime.

It is a super-2 number, since 2×44312444312 = 39271854414537027522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431244931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224866 + ... + 243776.

It is an arithmetic number, because the mean of its divisors is an integer number (379450368).

Almost surely, 24431244431 is an apocalyptic number.

4431244431 is a deficient number, since it is larger than the sum of its proper divisors (1639961457).

4431244431 is a wasteful number, since it uses less digits than its factorization.

4431244431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21062.

The product of its digits is 18432, while the sum is 30.

The square root of 4431244431 is about 66567.5929488216. The cubic root of 4431244431 is about 1642.5120671697.

Adding to 4431244431 its reverse (1344421344), we get a palindrome (5775665775).

The spelling of 4431244431 in words is "four billion, four hundred thirty-one million, two hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 3 37 111 2111 6333 18911 56733 78107 234321 699707 2099121 39921121 119763363 1477081477 4431244431