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29143 = 151193
BaseRepresentation
bin111000111010111
31110222101
413013113
51413033
6342531
7150652
oct70727
943871
1029143
111a994
1214a47
131035a
14a899
15897d
hex71d7

29143 has 4 divisors (see below), whose sum is σ = 29488. Its totient is φ = 28800.

The previous prime is 29137. The next prime is 29147. The reversal of 29143 is 34192.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 29143 - 29 = 28631 is a prime.

It is a Duffinian number.

29143 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 29143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29147) 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, 55 + ... + 247.

It is an arithmetic number, because the mean of its divisors is an integer number (7372).

229143 is an apocalyptic number.

29143 is a deficient number, since it is larger than the sum of its proper divisors (345).

29143 is a wasteful number, since it uses less digits than its factorization.

29143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344.

The product of its digits is 216, while the sum is 19.

The square root of 29143 is about 170.7132097994. The cubic root of 29143 is about 30.7735844801.

The spelling of 29143 in words is "twenty-nine thousand, one hundred forty-three".

Divisors: 1 151 193 29143