Search a number
-
+
29215 = 55843
BaseRepresentation
bin111001000011111
31111002001
413020133
51413330
6343131
7151114
oct71037
944061
1029215
111aa4a
1214aa7
13103b4
14a90b
1589ca
hex721f

29215 has 4 divisors (see below), whose sum is σ = 35064. Its totient is φ = 23368.

The previous prime is 29209. The next prime is 29221. The reversal of 29215 is 51292.

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

It is an interprime number because it is at equal distance from previous prime (29209) and next prime (29221).

It is a cyclic number.

It is not a de Polignac number, because 29215 - 23 = 29207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29192 and 29201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917 + ... + 2926.

It is an arithmetic number, because the mean of its divisors is an integer number (8766).

229215 is an apocalyptic number.

29215 is a deficient number, since it is larger than the sum of its proper divisors (5849).

29215 is an equidigital number, since it uses as much as digits as its factorization.

29215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848.

The product of its digits is 180, while the sum is 19.

The square root of 29215 is about 170.9239597014. The cubic root of 29215 is about 30.7989064659.

It can be divided in two parts, 2921 and 5, that added together give a triangular number (2926 = T76).

The spelling of 29215 in words is "twenty-nine thousand, two hundred fifteen".

Divisors: 1 5 5843 29215