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34681 = 79439
BaseRepresentation
bin1000011101111001
31202120111
420131321
52102211
6424321
7203053
oct103571
952514
1034681
1124069
12180a1
1312a2a
14c8d3
15a421
hex8779

34681 has 4 divisors (see below), whose sum is σ = 35200. Its totient is φ = 34164.

The previous prime is 34679. The next prime is 34687. The reversal of 34681 is 18643.

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: 18643 = 103181.

It is a cyclic number.

It is not a de Polignac number, because 34681 - 21 = 34679 is a prime.

It is a super-2 number, since 2×346812 = 2405543522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (34687) 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, 141 + ... + 298.

It is an arithmetic number, because the mean of its divisors is an integer number (8800).

234681 is an apocalyptic number.

It is an amenable number.

34681 is a deficient number, since it is larger than the sum of its proper divisors (519).

34681 is an equidigital number, since it uses as much as digits as its factorization.

34681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 576, while the sum is 22.

The square root of 34681 is about 186.2283544469. The cubic root of 34681 is about 32.6109815338.

The spelling of 34681 in words is "thirty-four thousand, six hundred eighty-one".

Divisors: 1 79 439 34681