Search a number
-
+
71106311 is a prime number
BaseRepresentation
bin1000011110011…
…11111100000111
311221210120112002
410033033330013
5121200400221
611020015515
71522252013
oct417177407
9157716462
1071106311
1137157251
121b99159b
1311968253
14962d543
15639880b
hex43cff07

71106311 has 2 divisors, whose sum is σ = 71106312. Its totient is φ = 71106310.

The previous prime is 71106263. The next prime is 71106313. The reversal of 71106311 is 11360117.

It is a strong prime.

It is an emirp because it is prime and its reverse (11360117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71106311 - 214 = 71089927 is a prime.

It is a super-2 number, since 2×711063112 = 10112214928057442, which contains 22 as substring.

Together with 71106313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71106313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35553155 + 35553156.

It is an arithmetic number, because the mean of its divisors is an integer number (35553156).

Almost surely, 271106311 is an apocalyptic number.

71106311 is a deficient number, since it is larger than the sum of its proper divisors (1).

71106311 is an equidigital number, since it uses as much as digits as its factorization.

71106311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 71106311 is about 8432.4558107351. The cubic root of 71106311 is about 414.2883453375.

Adding to 71106311 its reverse (11360117), we get a palindrome (82466428).

It can be divided in two parts, 71106 and 311, that added together give a palindrome (71417).

The spelling of 71106311 in words is "seventy-one million, one hundred six thousand, three hundred eleven".