Search a number
-
+
71169168 = 2437230259
BaseRepresentation
bin1000011110111…
…11010010010000
311221220202202010
410033133102100
5121204403133
611021222520
71522633200
oct417372220
9157822663
1071169168
113719a4a4
121ba01a40
131198aa45
149648400
1563ac263
hex43df490

71169168 has 60 divisors (see below), whose sum is σ = 213877680. Its totient is φ = 20333376.

The previous prime is 71169143. The next prime is 71169187. The reversal of 71169168 is 86196117.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12778 + ... + 17481.

It is an arithmetic number, because the mean of its divisors is an integer number (3564628).

Almost surely, 271169168 is an apocalyptic number.

It is an amenable number.

71169168 is an abundant number, since it is smaller than the sum of its proper divisors (142708512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71169168 is a wasteful number, since it uses less digits than its factorization.

71169168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30284 (or 30271 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 71169168 is about 8436.1820748488. The cubic root of 71169168 is about 414.4103844488.

The spelling of 71169168 in words is "seventy-one million, one hundred sixty-nine thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 30259 60518 90777 121036 181554 211813 242072 363108 423626 484144 635439 726216 847252 1270878 1452432 1482691 1694504 2541756 2965382 3389008 4448073 5083512 5930764 8896146 10167024 11861528 17792292 23723056 35584584 71169168