Base | Representation |
---|---|
bin | 100110111001… |
… | …0100001011011 |
3 | 1102101000121021 |
4 | 1031302201123 |
5 | 20210021102 |
6 | 2005023311 |
7 | 335220655 |
oct | 115624133 |
9 | 42330537 |
10 | 20392027 |
11 | 10568917 |
12 | 69b4b37 |
13 | 42bc9b6 |
14 | 29cb6d5 |
15 | 1bcc137 |
hex | 137285b |
20392027 has 8 divisors (see below), whose sum is σ = 21637152. Its totient is φ = 19152000.
The previous prime is 20392013. The next prime is 20392037. The reversal of 20392027 is 72029302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20392027 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20391992 and 20392010.
It is not an unprimeable number, because it can be changed into a prime (20392037) 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 7 ways as a sum of consecutive naturals, for example, 9777 + ... + 11677.
It is an arithmetic number, because the mean of its divisors is an integer number (2704644).
Almost surely, 220392027 is an apocalyptic number.
20392027 is a deficient number, since it is larger than the sum of its proper divisors (1245125).
20392027 is a wasteful number, since it uses less digits than its factorization.
20392027 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2549.
The product of its (nonzero) digits is 1512, while the sum is 25.
The square root of 20392027 is about 4515.7532040624. The cubic root of 20392027 is about 273.2038399437.
The spelling of 20392027 in words is "twenty million, three hundred ninety-two thousand, twenty-seven".
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