Search a number
-
+
289368692 = 22507714249
BaseRepresentation
bin10001001111110…
…110101001110100
3202011111110012222
4101033312221310
51043034244232
644414101512
710112410334
oct2117665164
9664443188
10289368692
11139382a88
1280aaa898
1347c47aa2
142a6070c4
151a60dd12
hex113f6a74

289368692 has 12 divisors (see below), whose sum is σ = 506530500. Its totient is φ = 144645696.

The previous prime is 289368691. The next prime is 289368701. The reversal of 289368692 is 296863982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254274916 + 35093776 = 15946^2 + 5924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289368691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13184 + ... + 27432.

It is an arithmetic number, because the mean of its divisors is an integer number (42210875).

Almost surely, 2289368692 is an apocalyptic number.

It is an amenable number.

289368692 is a deficient number, since it is larger than the sum of its proper divisors (217161808).

289368692 is a wasteful number, since it uses less digits than its factorization.

289368692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19330 (or 19328 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 289368692 is about 17010.8404260342. The cubic root of 289368692 is about 661.4299361309.

The spelling of 289368692 in words is "two hundred eighty-nine million, three hundred sixty-eight thousand, six hundred ninety-two".

Divisors: 1 2 4 5077 10154 14249 20308 28498 56996 72342173 144684346 289368692