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443630013 = 31974211783
BaseRepresentation
bin11010011100010…
…100000110111101
31010220202201222020
4122130110012331
51402032130023
6112004310353
713664535651
oct3234240675
91126681866
10443630013
11208465882
121046a23b9
1370ba9488
1442cc0a61
1528e30de3
hex1a7141bd

443630013 has 16 divisors (see below), whose sum is σ = 596255616. Its totient is φ = 293388480.

The previous prime is 443629913. The next prime is 443630029. The reversal of 443630013 is 310036344.

It is not a de Polignac number, because 443630013 - 210 = 443628989 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 (443630513) 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, 247920 + ... + 249702.

It is an arithmetic number, because the mean of its divisors is an integer number (37265976).

Almost surely, 2443630013 is an apocalyptic number.

It is an amenable number.

443630013 is a deficient number, since it is larger than the sum of its proper divisors (152625603).

443630013 is a wasteful number, since it uses less digits than its factorization.

443630013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 443630013 is about 21062.5262729806. The cubic root of 443630013 is about 762.6763977089.

Adding to 443630013 its reverse (310036344), we get a palindrome (753666357).

The spelling of 443630013 in words is "four hundred forty-three million, six hundred thirty thousand, thirteen".

Divisors: 1 3 197 421 591 1263 1783 5349 82937 248811 351251 750643 1053753 2251929 147876671 443630013