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13385577551 = 53869929033
BaseRepresentation
bin11000111011101011…
…11011010001001111
31021112212022210102112
430131311323101033
5204403201440201
610052123214235
7652464350303
oct143565732117
937485283375
1013385577551
11574989a595
12271697737b
1313542337b8
1490da57d03
155352170bb
hex31dd7b44f

13385577551 has 8 divisors (see below), whose sum is σ = 13640173200. Its totient is φ = 13131057472.

The previous prime is 13385577533. The next prime is 13385577587. The reversal of 13385577551 is 15577558331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13385577551 - 218 = 13385315407 is a prime.

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 13385577551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13385577851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446531 + ... + 475563.

It is an arithmetic number, because the mean of its divisors is an integer number (1705021650).

Almost surely, 213385577551 is an apocalyptic number.

13385577551 is a deficient number, since it is larger than the sum of its proper divisors (254595649).

13385577551 is an equidigital number, since it uses as much as digits as its factorization.

13385577551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37785.

The product of its digits is 2205000, while the sum is 50.

The spelling of 13385577551 in words is "thirteen billion, three hundred eighty-five million, five hundred seventy-seven thousand, five hundred fifty-one".

Divisors: 1 53 8699 29033 461047 1538749 252558067 13385577551