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13159485909 = 3679832753
BaseRepresentation
bin11000100000101110…
…11101000111010101
31020222002220011000000
430100113131013111
5203422312022114
610013445241513
7644050533063
oct142027350725
936862804000
1013159485909
115643206599
122673103299
13131944246b
148cba03033
15520456e09
hex3105dd1d5

13159485909 has 56 divisors (see below), whose sum is σ = 20228019840. Its totient is φ = 8554470912.

The previous prime is 13159485907. The next prime is 13159485917. The reversal of 13159485909 is 90958495131.

13159485909 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 9 + 48 + 590 + 9 = 666.

13159485909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13159485909 - 21 = 13159485907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13159485901) by changing a digit.

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 55 ways as a sum of consecutive naturals, for example, 4778677 + ... + 4781429.

It is an arithmetic number, because the mean of its divisors is an integer number (361214640).

Almost surely, 213159485909 is an apocalyptic number.

It is an amenable number.

13159485909 is a deficient number, since it is larger than the sum of its proper divisors (7068533931).

13159485909 is an frugal number, since it uses more digits than its factorization.

13159485909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 13159485909 in words is "thirteen billion, one hundred fifty-nine million, four hundred eighty-five thousand, nine hundred nine".

Divisors: 1 3 9 27 79 81 83 237 243 249 711 729 747 2133 2241 2753 6399 6557 6723 8259 19197 19671 20169 24777 57591 59013 60507 74331 177039 217487 222993 228499 531117 652461 668979 685497 1593351 1957383 2006937 2056491 4780053 5872149 6169473 17616447 18051421 18508419 52849341 54154263 55525257 158548023 162462789 166575771 487388367 1462165101 4386495303 13159485909