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30471 = 371451
BaseRepresentation
bin111011100000111
31112210120
413130013
51433341
6353023
7154560
oct73407
945716
1030471
1120991
1215773
1310b3c
14b167
159066
hex7707

30471 has 8 divisors (see below), whose sum is σ = 46464. Its totient is φ = 17400.

The previous prime is 30469. The next prime is 30491. The reversal of 30471 is 17403.

30471 is nontrivially palindromic in base 5.

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

It is not a de Polignac number, because 30471 - 21 = 30469 is a prime.

It is a super-3 number, since 3×304713 = 84875310531333, which contains 333 as substring.

30471 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 30471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431) 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, 705 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (5808).

230471 is an apocalyptic number.

30471 is a deficient number, since it is larger than the sum of its proper divisors (15993).

30471 is a wasteful number, since it uses less digits than its factorization.

30471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30471 is about 174.5594454620. The cubic root of 30471 is about 31.2340932379.

Adding to 30471 its reverse (17403), we get a palindrome (47874).

The spelling of 30471 in words is "thirty thousand, four hundred seventy-one".

Divisors: 1 3 7 21 1451 4353 10157 30471