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34144345 = 56828869
BaseRepresentation
bin1000001001000…
…0000001011001
32101020201020101
42002100001121
532220104340
63215455401
7563136124
oct202200131
971221211
1034144345
1118301174
12b527561
1370c6471
14476b3bb
152ee6c9a
hex2090059

34144345 has 4 divisors (see below), whose sum is σ = 40973220. Its totient is φ = 27315472.

The previous prime is 34144343. The next prime is 34144417. The reversal of 34144345 is 54344143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54344143 = 77763449.

It can be written as a sum of positive squares in 2 ways, for example, as 6906384 + 27237961 = 2628^2 + 5219^2 .

It is a cyclic number.

It is not a de Polignac number, because 34144345 - 21 = 34144343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34144343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414430 + ... + 3414439.

It is an arithmetic number, because the mean of its divisors is an integer number (10243305).

Almost surely, 234144345 is an apocalyptic number.

It is an amenable number.

34144345 is a deficient number, since it is larger than the sum of its proper divisors (6828875).

34144345 is an equidigital number, since it uses as much as digits as its factorization.

34144345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828874.

The product of its digits is 11520, while the sum is 28.

The square root of 34144345 is about 5843.3162673263. The cubic root of 34144345 is about 324.4189855868.

Adding to 34144345 its reverse (54344143), we get a palindrome (88488488).

The spelling of 34144345 in words is "thirty-four million, one hundred forty-four thousand, three hundred forty-five".

Divisors: 1 5 6828869 34144345