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BaseRepresentation
bin111011000001001
31112110011
413120021
51431332
6351521
7154045
oct73011
945404
1030217
1120780
12155a1
13109a5
14b025
158e47
hex7609

30217 has 8 divisors (see below), whose sum is σ = 34272. Its totient is φ = 26400.

The previous prime is 30211. The next prime is 30223. The reversal of 30217 is 71203.

It is an interprime number because it is at equal distance from previous prime (30211) and next prime (30223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30217 - 27 = 30089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30197 and 30206.

It is not an unprimeable number, because it can be changed into a prime (30211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418 + ... + 484.

It is an arithmetic number, because the mean of its divisors is an integer number (4284).

230217 is an apocalyptic number.

It is an amenable number.

30217 is a deficient number, since it is larger than the sum of its proper divisors (4055).

30217 is a wasteful number, since it uses less digits than its factorization.

30217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 30217 is about 173.8303770922. The cubic root of 30217 is about 31.1470639725.

The spelling of 30217 in words is "thirty thousand, two hundred seventeen".

Divisors: 1 11 41 67 451 737 2747 30217