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20833029 = 327330683
BaseRepresentation
bin100111101111…
…0001100000101
31110012102112200
41033132030011
520313124104
62022305113
7342035460
oct117361405
943172480
1020833029
111083a188
126b88199
134415649
142aa42d7
151c67b39
hex13de305

20833029 has 12 divisors (see below), whose sum is σ = 34391136. Its totient is φ = 11904552.

The previous prime is 20833013. The next prime is 20833039. The reversal of 20833029 is 92033802.

It is not a de Polignac number, because 20833029 - 24 = 20833013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20832993 and 20833011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20833039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165279 + ... + 165404.

It is an arithmetic number, because the mean of its divisors is an integer number (2865928).

Almost surely, 220833029 is an apocalyptic number.

It is an amenable number.

20833029 is a deficient number, since it is larger than the sum of its proper divisors (13558107).

20833029 is a wasteful number, since it uses less digits than its factorization.

20833029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330696 (or 330693 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20833029 is about 4564.3213077083. The cubic root of 20833029 is about 275.1592642193.

The spelling of 20833029 in words is "twenty million, eight hundred thirty-three thousand, twenty-nine".

Divisors: 1 3 7 9 21 63 330683 992049 2314781 2976147 6944343 20833029