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20548033 = 1161113271
BaseRepresentation
bin100111001100…
…0100111000001
31102122221121021
41032120213001
520230014113
62012225441
7336440542
oct116304701
942587537
1020548033
1110665050
126a6b281
1343459cc
142a2c4c9
151c0d48d
hex13989c1

20548033 has 16 divisors (see below), whose sum is σ = 23069952. Its totient is φ = 18144000.

The previous prime is 20548027. The next prime is 20548057. The reversal of 20548033 is 33084502.

It is a cyclic number.

It is not a de Polignac number, because 20548033 - 25 = 20548001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20547989 and 20548007.

It is not an unprimeable number, because it can be changed into a prime (20548013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75688 + ... + 75958.

It is an arithmetic number, because the mean of its divisors is an integer number (1441872).

Almost surely, 220548033 is an apocalyptic number.

It is an amenable number.

20548033 is a deficient number, since it is larger than the sum of its proper divisors (2521919).

20548033 is a wasteful number, since it uses less digits than its factorization.

20548033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20548033 is about 4532.9938230710. The cubic root of 20548033 is about 273.8987718129.

The spelling of 20548033 in words is "twenty million, five hundred forty-eight thousand, thirty-three".

Divisors: 1 11 61 113 271 671 1243 2981 6893 16531 30623 75823 181841 336853 1868003 20548033