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29031 = 39677
BaseRepresentation
bin111000101100111
31110211020
413011213
51412111
6342223
7150432
oct70547
943736
1029031
111a8a2
1214973
13102a2
14a819
158906
hex7167

29031 has 4 divisors (see below), whose sum is σ = 38712. Its totient is φ = 19352.

The previous prime is 29027. The next prime is 29033. The reversal of 29031 is 13092.

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 29031 - 22 = 29027 is a prime.

It is a super-2 number, since 2×290312 = 1685597922, which contains 22 as substring.

It is a D-number.

29031 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 29031.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 29031.

It is not an unprimeable number, because it can be changed into a prime (29033) 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, 4836 + ... + 4841.

It is an arithmetic number, because the mean of its divisors is an integer number (9678).

229031 is an apocalyptic number.

29031 is a deficient number, since it is larger than the sum of its proper divisors (9681).

29031 is an equidigital number, since it uses as much as digits as its factorization.

29031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 29031 is about 170.3848584822. The cubic root of 29031 is about 30.7341116942.

The spelling of 29031 in words is "twenty-nine thousand, thirty-one".

Divisors: 1 3 9677 29031