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330213231 = 32231739221
BaseRepresentation
bin10011101011101…
…010011101101111
3212000100120101200
4103223222131233
51134013310411
652433340543
711116523535
oct2353523557
9760316350
10330213231
1115a4400a7
1292707753
1353548b5a
1431bda155
151decae56
hex13aea76f

330213231 has 24 divisors (see below), whose sum is σ = 500643936. Its totient is φ = 209330880.

The previous prime is 330213193. The next prime is 330213239. The reversal of 330213231 is 132312033.

It is not a de Polignac number, because 330213231 - 29 = 330212719 is a prime.

It is a super-2 number, since 2×3302132312 = 218081555854918722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330213239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31201 + ... + 40421.

It is an arithmetic number, because the mean of its divisors is an integer number (20860164).

Almost surely, 2330213231 is an apocalyptic number.

330213231 is a deficient number, since it is larger than the sum of its proper divisors (170430705).

330213231 is a wasteful number, since it uses less digits than its factorization.

330213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9423 (or 9420 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 330213231 is about 18171.7701669375. The cubic root of 330213231 is about 691.1911310008.

Adding to 330213231 its reverse (132312033), we get a palindrome (462525264).

The spelling of 330213231 in words is "three hundred thirty million, two hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 9 23 69 173 207 519 1557 3979 9221 11937 27663 35811 82989 212083 636249 1595233 1908747 4785699 14357097 36690359 110071077 330213231