Search a number
-
+
239290 = 2523929
BaseRepresentation
bin111010011010111010
3110011020121
4322122322
530124130
65043454
72014432
oct723272
9404217
10239290
11153867
12b658a
1384bbc
14632c2
154ad7a
hex3a6ba

239290 has 8 divisors (see below), whose sum is σ = 430740. Its totient is φ = 95712.

The previous prime is 239287. The next prime is 239297. The reversal of 239290 is 92932.

It can be written as a sum of positive squares in 2 ways, for example, as 239121 + 169 = 489^2 + 13^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (239297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11955 + ... + 11974.

2239290 is an apocalyptic number.

239290 is a deficient number, since it is larger than the sum of its proper divisors (191450).

239290 is a wasteful number, since it uses less digits than its factorization.

239290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23936.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 239290 is about 489.1727711147. The cubic root of 239290 is about 62.0833080592.

It can be divided in two parts, 239 and 290, that added together give a square (529 = 232).

The spelling of 239290 in words is "two hundred thirty-nine thousand, two hundred ninety".

Divisors: 1 2 5 10 23929 47858 119645 239290