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213241 = 741743
BaseRepresentation
bin110100000011111001
3101211111211
4310003321
523310431
64323121
71545460
oct640371
9354454
10213241
11136236
12a34a1
13760a2
14579d7
15432b1
hex340f9

213241 has 8 divisors (see below), whose sum is σ = 249984. Its totient is φ = 178080.

The previous prime is 213229. The next prime is 213247. The reversal of 213241 is 142312.

Adding to 213241 its reverse (142312), we get a palindrome (355553).

It can be divided in two parts, 213 and 241, that added together give a palindrome (454).

213241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 213241 - 25 = 213209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2213241 is an apocalyptic number.

It is an amenable number.

213241 is a deficient number, since it is larger than the sum of its proper divisors (36743).

213241 is an equidigital number, since it uses as much as digits as its factorization.

213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 48, while the sum is 13.

The square root of 213241 is about 461.7802507687. The cubic root of 213241 is about 59.7434415635.

The spelling of 213241 in words is "two hundred thirteen thousand, two hundred forty-one".

Divisors: 1 7 41 287 743 5201 30463 213241