Base | Representation |
---|---|
bin | 100110001100… |
… | …0011011110011 |
3 | 1101200021102121 |
4 | 1030120123303 |
5 | 20111214102 |
6 | 1553055111 |
7 | 332123113 |
oct | 114303363 |
9 | 41607377 |
10 | 20023027 |
11 | 10336662 |
12 | 6857497 |
13 | 41c0a5b |
14 | 2933043 |
15 | 1b57b37 |
hex | 13186f3 |
20023027 has 2 divisors, whose sum is σ = 20023028. Its totient is φ = 20023026.
The previous prime is 20023009. The next prime is 20023037. The reversal of 20023027 is 72032002.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20023027 is a prime.
It is a super-2 number, since 2×200230272 = 801843220485458, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 20023027.
It is not a weakly prime, because it can be changed into another prime (20023037) 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 as a sum of consecutive naturals, namely, 10011513 + 10011514.
It is an arithmetic number, because the mean of its divisors is an integer number (10011514).
Almost surely, 220023027 is an apocalyptic number.
20023027 is a deficient number, since it is larger than the sum of its proper divisors (1).
20023027 is an equidigital number, since it uses as much as digits as its factorization.
20023027 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 168, while the sum is 16.
The square root of 20023027 is about 4474.7097112550. The cubic root of 20023027 is about 271.5458965286.
Adding to 20023027 its reverse (72032002), we get a palindrome (92055029).
The spelling of 20023027 in words is "twenty million, twenty-three thousand, twenty-seven".
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