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34342181 is a prime number
BaseRepresentation
bin1000001100000…
…0010100100101
32101121202121122
42003000110211
532242422211
63224023325
7564621656
oct203002445
971552548
1034342181
1118426875
12b601b45
137165523
1447bd52d
1530356db
hex20c0525

34342181 has 2 divisors, whose sum is σ = 34342182. Its totient is φ = 34342180.

The previous prime is 34342153. The next prime is 34342199. The reversal of 34342181 is 18124343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 3094081 = 5590^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 34342181 - 26 = 34342117 is a prime.

It is a super-2 number, since 2×343421812 = 2358770791673522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34342181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34312181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17171090 + 17171091.

It is an arithmetic number, because the mean of its divisors is an integer number (17171091).

Almost surely, 234342181 is an apocalyptic number.

It is an amenable number.

34342181 is a deficient number, since it is larger than the sum of its proper divisors (1).

34342181 is an equidigital number, since it uses as much as digits as its factorization.

34342181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 34342181 is about 5860.2202177051. The cubic root of 34342181 is about 325.0443521325.

It can be divided in two parts, 343 and 42181, that added together give a palindrome (42524).

The spelling of 34342181 in words is "thirty-four million, three hundred forty-two thousand, one hundred eighty-one".