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13344444468 = 223441186557
BaseRepresentation
bin11000110110110010…
…00001000000110100
31021102222221000110000
430123121001000310
5204312134210333
610044053431300
7651454622625
oct143331010064
937388830400
1013344444468
115728655703
12270503b530
1313488612b4
149083cba4c
155317de713
hex31b641034

13344444468 has 30 divisors (see below), whose sum is σ = 34885014626. Its totient is φ = 4448148048.

The previous prime is 13344444467. The next prime is 13344444479. The reversal of 13344444468 is 86444444331.

It can be written as a sum of positive squares in only one way, i.e., 13225460004 + 118984464 = 115002^2 + 10908^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344444467) 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 9 ways as a sum of consecutive naturals, for example, 20592955 + ... + 20593602.

Almost surely, 213344444468 is an apocalyptic number.

13344444468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13344444468 is an abundant number, since it is smaller than the sum of its proper divisors (21540570158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13344444468 is a wasteful number, since it uses less digits than its factorization.

13344444468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41186573 (or 41186562 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 45.

Adding to 13344444468 its reverse (86444444331), we get a palindrome (99788888799).

The spelling of 13344444468 in words is "thirteen billion, three hundred forty-four million, four hundred forty-four thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 41186557 82373114 123559671 164746228 247119342 370679013 494238684 741358026 1112037039 1482716052 2224074078 3336111117 4448148156 6672222234 13344444468