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115343213 is a prime number
BaseRepresentation
bin1101101111111…
…11111101101101
322001001001010212
412313333331231
5214011440323
615240112205
72600254406
oct667777555
9261031125
10115343213
115a121077
1232765665
131ab8642b
14114669ad
15a1d5b78
hex6dfff6d

115343213 has 2 divisors, whose sum is σ = 115343214. Its totient is φ = 115343212.

The previous prime is 115343153. The next prime is 115343231. The reversal of 115343213 is 312343511.

Together with next prime (115343231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115197289 + 145924 = 10733^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 115343213 - 210 = 115342189 is a prime.

It is a plaindrome in base 14.

It is a zygodrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115340213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57671606 + 57671607.

It is an arithmetic number, because the mean of its divisors is an integer number (57671607).

Almost surely, 2115343213 is an apocalyptic number.

It is an amenable number.

115343213 is a deficient number, since it is larger than the sum of its proper divisors (1).

115343213 is an equidigital number, since it uses as much as digits as its factorization.

115343213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 115343213 is about 10739.7957615590. The cubic root of 115343213 is about 486.7777081851. Note that the first 4 decimals are identical.

Adding to 115343213 its reverse (312343511), we get a palindrome (427686724).

The spelling of 115343213 in words is "one hundred fifteen million, three hundred forty-three thousand, two hundred thirteen".