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13401443412 = 2233717726777
BaseRepresentation
bin11000111101100100…
…11100110001010100
31021120222011212022000
430132302130301110
5204421232142122
610053451235300
7653046250410
oct143662346124
937528155260
1013401443412
115757846875
122720148b30
1313575ca296
14911bc7d40
155367ed0ac
hex31ec9cc54

13401443412 has 48 divisors (see below), whose sum is σ = 39707982720. Its totient is φ = 3828983616.

The previous prime is 13401443399. The next prime is 13401443453. The reversal of 13401443412 is 21434410431.

13401443412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8862633 + ... + 8864144.

It is an arithmetic number, because the mean of its divisors is an integer number (827249640).

Almost surely, 213401443412 is an apocalyptic number.

13401443412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13401443412 is an abundant number, since it is smaller than the sum of its proper divisors (26306539308).

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

13401443412 is a wasteful number, since it uses less digits than its factorization.

13401443412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17726797 (or 17726789 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 13401443412 its reverse (21434410431), we get a palindrome (34835853843).

The spelling of 13401443412 in words is "thirteen billion, four hundred one million, four hundred forty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 17726777 35453554 53180331 70907108 106360662 124087439 159540993 212721324 248174878 319081986 372262317 478622979 496349756 638163972 744524634 957245958 1116786951 1489049268 1914491916 2233573902 3350360853 4467147804 6700721706 13401443412