Search a number
-
+
8194986 = 2331779113
BaseRepresentation
bin11111010000101110101010
3120102100102000
4133100232222
54044214421
6451351430
7126441042
oct37205652
916370360
108194986
114698018
1228b2576
13190c107
141134722
15abd226
hex7d0baa

8194986 has 64 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 2515968.

The previous prime is 8194981. The next prime is 8194987. The reversal of 8194986 is 6894918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194981) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 72466 + ... + 72578.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

Almost surely, 28194986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8194986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9849600).

8194986 is an abundant number, since it is smaller than the sum of its proper divisors (11504214).

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

8194986 is a wasteful number, since it uses less digits than its factorization.

8194986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 214 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 8194986 is about 2862.6885964072. The cubic root of 8194986 is about 201.6118580043.

It can be divided in two parts, 8194 and 986, that added together give a triangular number (9180 = T135).

The spelling of 8194986 in words is "eight million, one hundred ninety-four thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 79 102 113 153 158 226 237 306 339 459 474 678 711 918 1017 1343 1422 1921 2034 2133 2686 3051 3842 4029 4266 5763 6102 8058 8927 11526 12087 17289 17854 24174 26781 34578 36261 51867 53562 72522 80343 103734 151759 160686 241029 303518 455277 482058 910554 1365831 2731662 4097493 8194986