Search a number
-
+
288193 = 377789
BaseRepresentation
bin1000110010111000001
3112122022211
41012113001
533210233
610102121
72310133
oct1062701
9478284
10288193
11187584
1211a941
13a1239
1477053
155a5cd
hex465c1

288193 has 4 divisors (see below), whose sum is σ = 296020. Its totient is φ = 280368.

The previous prime is 288191. The next prime is 288199. The reversal of 288193 is 391882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 69169 = 468^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 288193 - 21 = 288191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288191) 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, 3858 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (74005).

2288193 is an apocalyptic number.

It is an amenable number.

288193 is a deficient number, since it is larger than the sum of its proper divisors (7827).

288193 is an equidigital number, since it uses as much as digits as its factorization.

288193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826.

The product of its digits is 3456, while the sum is 31.

The square root of 288193 is about 536.8361016176. The cubic root of 288193 is about 66.0532933496.

The spelling of 288193 in words is "two hundred eighty-eight thousand, one hundred ninety-three".

Divisors: 1 37 7789 288193