Search a number
-
+
13385373569 = 42821312589
BaseRepresentation
bin11000111011101010…
…01001011110000001
31021112211221102121122
430131311021132001
5204403123423234
610052115002025
7652462540511
oct143565113601
937484842548
1013385373569
115749770307
122716899315
1313541919b9
1490da03841
155351c692e
hex31dd49781

13385373569 has 4 divisors (see below), whose sum is σ = 13385728980. Its totient is φ = 13385018160.

The previous prime is 13385373559. The next prime is 13385373583. The reversal of 13385373569 is 96537358331.

13385373569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7274042944 + 6111330625 = 85288^2 + 78175^2 .

It is a cyclic number.

It is not a de Polignac number, because 13385373569 - 216 = 13385308033 is a prime.

It is a super-2 number, since 2×133853735692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13385373569.

It is not an unprimeable number, because it can be changed into a prime (13385373559) 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 3 ways as a sum of consecutive naturals, for example, 113474 + ... + 199115.

It is an arithmetic number, because the mean of its divisors is an integer number (3346432245).

Almost surely, 213385373569 is an apocalyptic number.

It is an amenable number.

13385373569 is a deficient number, since it is larger than the sum of its proper divisors (355411).

13385373569 is an equidigital number, since it uses as much as digits as its factorization.

13385373569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355410.

The product of its digits is 6123600, while the sum is 53.

The spelling of 13385373569 in words is "thirteen billion, three hundred eighty-five million, three hundred seventy-three thousand, five hundred sixty-nine".

Divisors: 1 42821 312589 13385373569