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133330023 = 3329473623
BaseRepresentation
bin1111111001001…
…11010001100111
3100021212212102000
413330213101213
5233113030043
621121420343
73206200161
oct774472147
9307785360
10133330023
1169296902
123879a6b3
1321813408
14139c9931
15ba8a2d3
hex7f27467

133330023 has 32 divisors (see below), whose sum is σ = 208742400. Its totient is φ = 83972448.

The previous prime is 133330013. The next prime is 133330027. The reversal of 133330023 is 320033331.

It is not a de Polignac number, because 133330023 - 217 = 133198951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133329978 and 133330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133330027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34990 + ... + 38612.

It is an arithmetic number, because the mean of its divisors is an integer number (6523200).

Almost surely, 2133330023 is an apocalyptic number.

133330023 is a deficient number, since it is larger than the sum of its proper divisors (75412377).

133330023 is a wasteful number, since it uses less digits than its factorization.

133330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708 (or 3702 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 133330023 is about 11546.8620412647. The cubic root of 133330023 is about 510.8687269946.

Adding to 133330023 its reverse (320033331), we get a palindrome (453363354).

The spelling of 133330023 in words is "one hundred thirty-three million, three hundred thirty thousand, twenty-three".

Divisors: 1 3 9 27 29 47 87 141 261 423 783 1269 1363 3623 4089 10869 12267 32607 36801 97821 105067 170281 315201 510843 945603 1532529 2836809 4597587 4938149 14814447 44443341 133330023