Base | Representation |
---|---|
bin | 100110010000… |
… | …1100000101101 |
3 | 1101202011102120 |
4 | 1030201200231 |
5 | 20113411310 |
6 | 1553543153 |
7 | 332336364 |
oct | 114414055 |
9 | 41664376 |
10 | 20060205 |
11 | 10361590 |
12 | 6874ab9 |
13 | 4204959 |
14 | 29427db |
15 | 1b63b70 |
hex | 132182d |
20060205 has 16 divisors (see below), whose sum is σ = 35014464. Its totient is φ = 9726080.
The previous prime is 20060197. The next prime is 20060213. The reversal of 20060205 is 50206002.
It is an interprime number because it is at equal distance from previous prime (20060197) and next prime (20060213).
It is not a de Polignac number, because 20060205 - 23 = 20060197 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60624 + ... + 60953.
It is an arithmetic number, because the mean of its divisors is an integer number (2188404).
Almost surely, 220060205 is an apocalyptic number.
It is an amenable number.
20060205 is a deficient number, since it is larger than the sum of its proper divisors (14954259).
20060205 is a wasteful number, since it uses less digits than its factorization.
20060205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 121596.
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 20060205 is about 4478.8620206477. The cubic root of 20060205 is about 271.7138580035.
Adding to 20060205 its reverse (50206002), we get a palindrome (70266207).
The spelling of 20060205 in words is "twenty million, sixty thousand, two hundred five".
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