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29693 = 231291
BaseRepresentation
bin111001111111101
31111201202
413033331
51422233
6345245
7152366
oct71775
944652
1029693
1120344
1215225
1310691
14ab6d
158be8
hex73fd

29693 has 4 divisors (see below), whose sum is σ = 31008. Its totient is φ = 28380.

The previous prime is 29683. The next prime is 29717. The reversal of 29693 is 39692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29693 - 26 = 29629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29633) 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, 623 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (7752).

229693 is an apocalyptic number.

29693 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29693 is a deficient number, since it is larger than the sum of its proper divisors (1315).

29693 is a wasteful number, since it uses less digits than its factorization.

29693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its digits is 2916, while the sum is 29.

The square root of 29693 is about 172.3165691395. The cubic root of 29693 is about 30.9659702891.

Subtracting 29693 from its reverse (39692), we obtain a palindrome (9999).

The spelling of 29693 in words is "twenty-nine thousand, six hundred ninety-three".

Divisors: 1 23 1291 29693