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30219 = 371439
BaseRepresentation
bin111011000001011
31112110020
413120023
51431334
6351523
7154050
oct73013
945406
1030219
1120782
12155a3
13109a7
14b027
158e49
hex760b

30219 has 8 divisors (see below), whose sum is σ = 46080. Its totient is φ = 17256.

The previous prime is 30211. The next prime is 30223. The reversal of 30219 is 91203.

30219 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 30219 - 23 = 30211 is a prime.

It is a super-2 number, since 2×302192 = 1826375922, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 30198 and 30207.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (5760).

230219 is an apocalyptic number.

30219 is a deficient number, since it is larger than the sum of its proper divisors (15861).

30219 is a wasteful number, since it uses less digits than its factorization.

30219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449.

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

The square root of 30219 is about 173.8361297314. The cubic root of 30219 is about 31.1477511437.

The spelling of 30219 in words is "thirty thousand, two hundred nineteen".

Divisors: 1 3 7 21 1439 4317 10073 30219