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33423 = 313857
BaseRepresentation
bin1000001010001111
31200211220
420022033
52032143
6414423
7166305
oct101217
950756
1033423
1123125
1217413
13122a0
14c275
159d83
hex828f

33423 has 8 divisors (see below), whose sum is σ = 48048. Its totient is φ = 20544.

The previous prime is 33413. The next prime is 33427. The reversal of 33423 is 32433.

Adding to 33423 its reverse (32433), we get a palindrome (65856).

Subtracting from 33423 its reverse (32433), we obtain a triangular number (990 = T44).

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

It is not a de Polignac number, because 33423 - 25 = 33391 is a prime.

It is a super-2 number, since 2×334232 = 2234193858, which contains 22 as substring.

33423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33427) 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, 390 + ... + 467.

It is an arithmetic number, because the mean of its divisors is an integer number (6006).

233423 is an apocalyptic number.

33423 is a deficient number, since it is larger than the sum of its proper divisors (14625).

33423 is a wasteful number, since it uses less digits than its factorization.

33423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 216, while the sum is 15.

The square root of 33423 is about 182.8195831961. The cubic root of 33423 is about 32.2118110549.

The spelling of 33423 in words is "thirty-three thousand, four hundred twenty-three".

Divisors: 1 3 13 39 857 2571 11141 33423