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13116131 = 73160443
BaseRepresentation
bin110010000010…
…001011100011
3220200100221122
4302002023203
511324204011
61145042455
7216325310
oct62021343
926610848
1013116131
117449386
12448642b
132943032
141a55d07
1512413db
hexc822e3

13116131 has 8 divisors (see below), whose sum is σ = 15473664. Its totient is φ = 10879560.

The previous prime is 13116119. The next prime is 13116157. The reversal of 13116131 is 13161131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13116131 is a prime.

It is a super-2 number, since 2×131161312 = 344065784818322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13116101) 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, 30005 + ... + 30438.

It is an arithmetic number, because the mean of its divisors is an integer number (1934208).

Almost surely, 213116131 is an apocalyptic number.

13116131 is a deficient number, since it is larger than the sum of its proper divisors (2357533).

13116131 is an equidigital number, since it uses as much as digits as its factorization.

13116131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60481.

The product of its digits is 54, while the sum is 17.

The square root of 13116131 is about 3621.6199414074. The cubic root of 13116131 is about 235.8315553257.

Adding to 13116131 its reverse (13161131), we get a palindrome (26277262).

The spelling of 13116131 in words is "thirteen million, one hundred sixteen thousand, one hundred thirty-one".

Divisors: 1 7 31 217 60443 423101 1873733 13116131