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13243411443 = 3373972757
BaseRepresentation
bin11000101010101111…
…00110101111110011
31021011221211000012010
430111113212233303
5204110303131233
610030044134003
7646120065663
oct142527465763
937157730163
1013243411443
115686619039
122697237303
131330948542
148d8c0c1a3
155279d3b63
hex3155e6bf3

13243411443 has 24 divisors (see below), whose sum is σ = 18204934512. Its totient is φ = 8557363584.

The previous prime is 13243411429. The next prime is 13243411457. The reversal of 13243411443 is 34411434231.

It is an interprime number because it is at equal distance from previous prime (13243411429) and next prime (13243411457).

It is not a de Polignac number, because 13243411443 - 28 = 13243411187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13243411443.

It is not an unprimeable number, because it can be changed into a prime (13243411343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17494221 + ... + 17494977.

It is an arithmetic number, because the mean of its divisors is an integer number (758538938).

Almost surely, 213243411443 is an apocalyptic number.

13243411443 is a deficient number, since it is larger than the sum of its proper divisors (4961523069).

13243411443 is an frugal number, since it uses more digits than its factorization.

13243411443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1194 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

Adding to 13243411443 its reverse (34411434231), we get a palindrome (47654845674).

The spelling of 13243411443 in words is "thirteen billion, two hundred forty-three million, four hundred eleven thousand, four hundred forty-three".

Divisors: 1 3 37 111 397 757 1191 2271 14689 28009 44067 84027 157609 300529 472827 901587 5831533 11119573 17494599 33358719 119310013 357930039 4414470481 13243411443