Base | Representation |
---|---|
bin | 10001010000110011000 |
3 | 1001201221020 |
4 | 2022012120 |
5 | 121100111 |
6 | 20042440 |
7 | 4544100 |
oct | 2120630 |
9 | 1051836 |
10 | 565656 |
11 | 356a93 |
12 | 233420 |
13 | 16a610 |
14 | 10a200 |
15 | b2906 |
hex | 8a198 |
565656 has 96 divisors (see below), whose sum is σ = 1819440. Its totient is φ = 145152.
The previous prime is 565651. The next prime is 565661. The reversal of 565656 is 656565.
565656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is an interprime number because it is at equal distance from previous prime (565651) and next prime (565661).
It is an alternating number because its digits alternate between odd and even.
565656 is an undulating number in base 10.
565656 is a modest number, since divided by 5656 gives 56 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (565651) by changing a digit.
565656 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15270 + ... + 15306.
2565656 is an apocalyptic number.
565656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 565656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909720).
565656 is an abundant number, since it is smaller than the sum of its proper divisors (1253784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
565656 is a wasteful number, since it uses less digits than its factorization.
565656 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73 (or 62 counting only the distinct ones).
The product of its digits is 27000, while the sum is 33.
The square root of 565656 is about 752.1010570395. The cubic root of 565656 is about 82.7022768306.
Adding to 565656 its reverse (656565), we get a palindrome (1222221).
Subtracting 565656 from its reverse (656565), we obtain a palindrome (90909).
It can be divided in two parts, 565 and 656, that added together give a palindrome (1221).
The spelling of 565656 in words is "five hundred sixty-five thousand, six hundred fifty-six".
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