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29071 = 74153
BaseRepresentation
bin111000110001111
31110212201
413012033
51412241
6342331
7150520
oct70617
943781
1029071
111a929
12149a7
1310303
14a847
158931
hex718f

29071 has 4 divisors (see below), whose sum is σ = 33232. Its totient is φ = 24912.

The previous prime is 29063. The next prime is 29077. The reversal of 29071 is 17092.

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

It is a cyclic number.

It is not a de Polignac number, because 29071 - 23 = 29063 is a prime.

It is the 171-st Hogben number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29077) by changing a digit.

It is a nontrivial repunit in base 170.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2070 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (8308).

229071 is an apocalyptic number.

29071 is a deficient number, since it is larger than the sum of its proper divisors (4161).

29071 is an equidigital number, since it uses as much as digits as its factorization.

29071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 29071 is about 170.5021993993. The cubic root of 29071 is about 30.7482207532.

It can be divided in two parts, 290 and 71, that added together give a square (361 = 192).

The spelling of 29071 in words is "twenty-nine thousand, seventy-one".

Divisors: 1 7 4153 29071