Search a number
-
+
29893 = 167179
BaseRepresentation
bin111010011000101
31112000011
413103011
51424033
6350221
7153103
oct72305
945004
1029893
1120506
1215371
13107b6
14ac73
158ccd
hex74c5

29893 has 4 divisors (see below), whose sum is σ = 30240. Its totient is φ = 29548.

The previous prime is 29881. The next prime is 29917. The reversal of 29893 is 39892.

It is a happy number.

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, 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 29893 - 213 = 21701 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

29893 is a lucky number.

It is a plaindrome in base 15.

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, 78 + ... + 256.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

229893 is an apocalyptic number.

It is an amenable number.

29893 is a deficient number, since it is larger than the sum of its proper divisors (347).

29893 is a wasteful number, since it uses less digits than its factorization.

29893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its digits is 3888, while the sum is 31.

The square root of 29893 is about 172.8959224505. The cubic root of 29893 is about 31.0353395109.

Subtracting 29893 from its reverse (39892), we obtain a palindrome (9999).

It can be divided in two parts, 2989 and 3, that added together give a palindrome (2992).

The spelling of 29893 in words is "twenty-nine thousand, eight hundred ninety-three".

Divisors: 1 167 179 29893