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238213 is a prime number
BaseRepresentation
bin111010001010000101
3110002202201
4322022011
530110323
65034501
72011333
oct721205
9402681
10238213
11152a78
12b5a31
1384571
1462b53
154a8ad
hex3a285

238213 has 2 divisors, whose sum is σ = 238214. Its totient is φ = 238212.

The previous prime is 238207. The next prime is 238223. The reversal of 238213 is 312832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 42849 = 442^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 238213 - 25 = 238181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119106 + 119107.

It is an arithmetic number, because the mean of its divisors is an integer number (119107).

2238213 is an apocalyptic number.

It is an amenable number.

238213 is a deficient number, since it is larger than the sum of its proper divisors (1).

238213 is an equidigital number, since it uses as much as digits as its factorization.

238213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 238213 is about 488.0706916011. The cubic root of 238213 is about 61.9900261445.

The spelling of 238213 in words is "two hundred thirty-eight thousand, two hundred thirteen".