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29806 = 272129
BaseRepresentation
bin111010001101110
31111212221
413101232
51423211
6345554
7152620
oct72156
944787
1029806
1120437
12152ba
131074a
14ac10
158c71
hex746e

29806 has 8 divisors (see below), whose sum is σ = 51120. Its totient is φ = 12768.

The previous prime is 29803. The next prime is 29819. The reversal of 29806 is 60892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29803) 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, 1051 + ... + 1078.

It is an arithmetic number, because the mean of its divisors is an integer number (6390).

229806 is an apocalyptic number.

29806 is a deficient number, since it is larger than the sum of its proper divisors (21314).

29806 is a wasteful number, since it uses less digits than its factorization.

29806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 29806 is about 172.6441426750. The cubic root of 29806 is about 31.0052020406.

The spelling of 29806 in words is "twenty-nine thousand, eight hundred six".

Divisors: 1 2 7 14 2129 4258 14903 29806