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71324111 = 2292931063
BaseRepresentation
bin1000100000001…
…01000111001111
311222012122021202
410100011013033
5121224332421
611024420115
71524150005
oct420050717
9158178252
1071324111
1137295951
121ba7763b
1311a13421
149688a75
1563dd10b
hex44051cf

71324111 has 8 divisors (see below), whose sum is σ = 71947680. Its totient is φ = 70703712.

The previous prime is 71324093. The next prime is 71324117. The reversal of 71324111 is 11142317.

It is a happy number.

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 71324111 - 214 = 71307727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71324117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66566 + ... + 67628.

It is an arithmetic number, because the mean of its divisors is an integer number (8993460).

Almost surely, 271324111 is an apocalyptic number.

71324111 is a deficient number, since it is larger than the sum of its proper divisors (623569).

71324111 is a wasteful number, since it uses less digits than its factorization.

71324111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585.

The product of its digits is 168, while the sum is 20.

The square root of 71324111 is about 8445.3603238701. The cubic root of 71324111 is about 414.7109052544.

Adding to 71324111 its reverse (11142317), we get a palindrome (82466428).

The spelling of 71324111 in words is "seventy-one million, three hundred twenty-four thousand, one hundred eleven".

Divisors: 1 229 293 1063 67097 243427 311459 71324111