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29305 = 55861
BaseRepresentation
bin111001001111001
31111012101
413021321
51414210
6343401
7151303
oct71171
944171
1029305
1120021
1214b61
1310453
14a973
158a3a
hex7279

29305 has 4 divisors (see below), whose sum is σ = 35172. Its totient is φ = 23440.

The previous prime is 29303. The next prime is 29311. The reversal of 29305 is 50392.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11881 + 17424 = 109^2 + 132^2 .

It is not a de Polignac number, because 29305 - 21 = 29303 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (29303) 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, 2926 + ... + 2935.

It is an arithmetic number, because the mean of its divisors is an integer number (8793).

229305 is an apocalyptic number.

It is an amenable number.

29305 is a deficient number, since it is larger than the sum of its proper divisors (5867).

29305 is an equidigital number, since it uses as much as digits as its factorization.

29305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 29305 is about 171.1870322191. The cubic root of 29305 is about 30.8305005108.

Adding to 29305 its reverse (50392), we get a palindrome (79697).

The spelling of 29305 in words is "twenty-nine thousand, three hundred five".

Divisors: 1 5 5861 29305