Search a number
-
+
71168897 = 1371633187
BaseRepresentation
bin1000011110111…
…11001110000001
311221220202101002
410033133032001
5121204401042
611021221345
71522632332
oct417371601
9157822332
1071168897
113719a278
121ba01855
131198a897
149648289
1563ac132
hex43df381

71168897 has 8 divisors (see below), whose sum is σ = 72150816. Its totient is φ = 70193952.

The previous prime is 71168893. The next prime is 71168921. The reversal of 71168897 is 79886117.

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 71168897 - 22 = 71168893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71168891) 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, 20738 + ... + 23924.

It is an arithmetic number, because the mean of its divisors is an integer number (9018852).

Almost surely, 271168897 is an apocalyptic number.

It is an amenable number.

71168897 is a deficient number, since it is larger than the sum of its proper divisors (981919).

71168897 is a wasteful number, since it uses less digits than its factorization.

71168897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its digits is 169344, while the sum is 47.

The square root of 71168897 is about 8436.1660130654. The cubic root of 71168897 is about 414.4098584469.

The spelling of 71168897 in words is "seventy-one million, one hundred sixty-eight thousand, eight hundred ninety-seven".

Divisors: 1 137 163 3187 22331 436619 519481 71168897