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235213 = 1121383
BaseRepresentation
bin111001011011001101
3102221122121
4321123031
530011323
65012541
71666516
oct713315
9387577
10235213
111507a0
12b4151
13830a4
1461a0d
1549a5d
hex396cd

235213 has 4 divisors (see below), whose sum is σ = 256608. Its totient is φ = 213820.

The previous prime is 235211. The next prime is 235231. The reversal of 235213 is 312532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 235213 - 21 = 235211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235211) 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, 10681 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (64152).

2235213 is an apocalyptic number.

It is an amenable number.

235213 is a deficient number, since it is larger than the sum of its proper divisors (21395).

235213 is a wasteful number, since it uses less digits than its factorization.

235213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21394.

The product of its digits is 180, while the sum is 16.

The square root of 235213 is about 484.9876287082. The cubic root of 235213 is about 61.7286966130.

Adding to 235213 its reverse (312532), we get a palindrome (547745).

The spelling of 235213 in words is "two hundred thirty-five thousand, two hundred thirteen".

Divisors: 1 11 21383 235213