Search a number
-
+
250213 = 534721
BaseRepresentation
bin111101000101100101
3110201020011
4331011211
531001323
65210221
72061325
oct750545
9421204
10250213
11160a97
12100971
1389b72
1467285
154e20d
hex3d165

250213 has 4 divisors (see below), whose sum is σ = 254988. Its totient is φ = 245440.

The previous prime is 250199. The next prime is 250253. The reversal of 250213 is 312052.

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 158404 + 91809 = 398^2 + 303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-250213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250193 and 250202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250253) 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, 2308 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (63747).

2250213 is an apocalyptic number.

It is an amenable number.

250213 is a deficient number, since it is larger than the sum of its proper divisors (4775).

250213 is an equidigital number, since it uses as much as digits as its factorization.

250213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 250213 is about 500.2129546503. The cubic root of 250213 is about 63.0139382950.

Adding to 250213 its reverse (312052), we get a palindrome (562265).

The spelling of 250213 in words is "two hundred fifty thousand, two hundred thirteen".

Divisors: 1 53 4721 250213