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13809332061 = 3578579473
BaseRepresentation
bin11001101110001100…
…11010111101011101
31022122101200202100000
430313012122331131
5211240142111221
610202141524513
7666131246220
oct146706327535
938571622300
1013809332061
11594700a628
122814873739
1313c0c71405
149500435b7
1555c51de26
hex33719af5d

13809332061 has 48 divisors (see below), whose sum is σ = 23670751104. Its totient is φ = 7881007104.

The previous prime is 13809332059. The next prime is 13809332063. The reversal of 13809332061 is 16023390831.

It is an interprime number because it is at equal distance from previous prime (13809332059) and next prime (13809332063).

It is not a de Polignac number, because 13809332061 - 21 = 13809332059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809332063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1453021 + ... + 1462493.

It is an arithmetic number, because the mean of its divisors is an integer number (493140648).

Almost surely, 213809332061 is an apocalyptic number.

It is an amenable number.

13809332061 is a deficient number, since it is larger than the sum of its proper divisors (9861419043).

13809332061 is an frugal number, since it uses more digits than its factorization.

13809332061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352 (or 10340 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 13809332061 in words is "thirteen billion, eight hundred nine million, three hundred thirty-two thousand, sixty-one".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 857 1701 2571 5999 7713 9473 17997 23139 28419 53991 66311 69417 85257 161973 198933 208251 255771 485919 596799 767313 1457757 1790397 2301939 5371191 8118361 16113573 24355083 56828527 73065249 170485581 219195747 511456743 657587241 1534370229 1972761723 4603110687 13809332061