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34509 = 311503
BaseRepresentation
bin1000011011001101
31202100010
420123031
52101014
6423433
7202416
oct103315
952303
1034509
1123a22
1217b79
1312927
14c80d
15a359
hex86cd

34509 has 4 divisors (see below), whose sum is σ = 46016. Its totient is φ = 23004.

The previous prime is 34501. The next prime is 34511. The reversal of 34509 is 90543.

34509 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90543 = 330181.

It is not a de Polignac number, because 34509 - 23 = 34501 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749 + ... + 5754.

It is an arithmetic number, because the mean of its divisors is an integer number (11504).

234509 is an apocalyptic number.

It is an amenable number.

34509 is a deficient number, since it is larger than the sum of its proper divisors (11507).

34509 is a wasteful number, since it uses less digits than its factorization.

34509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 34509 is about 185.7659818158. The cubic root of 34509 is about 32.5569809072.

The spelling of 34509 in words is "thirty-four thousand, five hundred nine".

Divisors: 1 3 11503 34509