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34709 = 61569
BaseRepresentation
bin1000011110010101
31202121112
420132111
52102314
6424405
7203123
oct103625
952545
1034709
1124094
1218105
1312a4c
14c913
15a43e
hex8795

34709 has 4 divisors (see below), whose sum is σ = 35340. Its totient is φ = 34080.

The previous prime is 34703. The next prime is 34721. The reversal of 34709 is 90743.

34709 is digitally balanced in base 2, because in such base 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 an emirpimes, since its reverse is a distinct semiprime: 90743 = 103881.

It can be written as a sum of positive squares in 2 ways, for example, as 3025 + 31684 = 55^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 34709 - 24 = 34693 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34703) 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, 224 + ... + 345.

It is an arithmetic number, because the mean of its divisors is an integer number (8835).

234709 is an apocalyptic number.

It is an amenable number.

34709 is a deficient number, since it is larger than the sum of its proper divisors (631).

34709 is an equidigital number, since it uses as much as digits as its factorization.

34709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 34709 is about 186.3035158015. The cubic root of 34709 is about 32.6197554240.

The spelling of 34709 in words is "thirty-four thousand, seven hundred nine".

Divisors: 1 61 569 34709