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13189271 is a prime number
BaseRepresentation
bin110010010100…
…000010010111
3220211002021112
4302110002113
511334024041
61150405235
7220051454
oct62240227
926732245
1013189271
117499327
12450081b
13296a404
141a7482b
151257deb
hexc94097

13189271 has 2 divisors, whose sum is σ = 13189272. Its totient is φ = 13189270.

The previous prime is 13189259. The next prime is 13189277. The reversal of 13189271 is 17298131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13189271 is a prime.

It is a super-2 number, since 2×131892712 = 347913739022882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13189277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6594635 + 6594636.

It is an arithmetic number, because the mean of its divisors is an integer number (6594636).

Almost surely, 213189271 is an apocalyptic number.

13189271 is a deficient number, since it is larger than the sum of its proper divisors (1).

13189271 is an equidigital number, since it uses as much as digits as its factorization.

13189271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 32.

The square root of 13189271 is about 3631.7035947335. The cubic root of 13189271 is about 236.2691019707.

The spelling of 13189271 in words is "thirteen million, one hundred eighty-nine thousand, two hundred seventy-one".