Search a number
-
+
11686269913 = 67174421939
BaseRepresentation
bin10101110001000111…
…00101001111011001
31010011102210000120121
422320203211033121
5142413141114123
65211341153241
7562411440523
oct127043451731
933142700517
1011686269913
114a5765a60a
12232185b821
13114316a416
147cc0b2a13
15485e4d75d
hex2b88e53d9

11686269913 has 4 divisors (see below), whose sum is σ = 11860691920. Its totient is φ = 11511847908.

The previous prime is 11686269901. The next prime is 11686269937. The reversal of 11686269913 is 31996268611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31996268611 = 71944501069.

It is a cyclic number.

It is not a de Polignac number, because 11686269913 - 233 = 3096335321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11686269613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87210903 + ... + 87211036.

It is an arithmetic number, because the mean of its divisors is an integer number (2965172980).

Almost surely, 211686269913 is an apocalyptic number.

It is an amenable number.

11686269913 is a deficient number, since it is larger than the sum of its proper divisors (174422007).

11686269913 is an equidigital number, since it uses as much as digits as its factorization.

11686269913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174422006.

The product of its digits is 839808, while the sum is 52.

The spelling of 11686269913 in words is "eleven billion, six hundred eighty-six million, two hundred sixty-nine thousand, nine hundred thirteen".

Divisors: 1 67 174421939 11686269913