Base | Representation |
---|---|
bin | 10101100111001100011001 |
3 | 101122211200121 |
4 | 111213030121 |
5 | 2422244221 |
6 | 321233241 |
7 | 66104446 |
oct | 25471431 |
9 | 11584617 |
10 | 5665561 |
11 | 321a690 |
12 | 1a92821 |
13 | 1234a05 |
14 | a769cd |
15 | 76da41 |
hex | 567319 |
5665561 has 8 divisors (see below), whose sum is σ = 6212448. Its totient is φ = 5124000.
The previous prime is 5665559. The next prime is 5665571. The reversal of 5665561 is 1655665.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 5665561 - 21 = 5665559 is a prime.
5665561 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (5665531) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101 + ... + 3541.
It is an arithmetic number, because the mean of its divisors is an integer number (776556).
Almost surely, 25665561 is an apocalyptic number.
It is an amenable number.
5665561 is a deficient number, since it is larger than the sum of its proper divisors (546887).
5665561 is a wasteful number, since it uses less digits than its factorization.
5665561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2663.
The product of its digits is 27000, while the sum is 34.
The square root of 5665561 is about 2380.2438950662. The cubic root of 5665561 is about 178.2711119196.
It can be divided in two parts, 5665 and 561, that added together give a palindrome (6226).
The spelling of 5665561 in words is "five million, six hundred sixty-five thousand, five hundred sixty-one".
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