Base | Representation |
---|---|
bin | 111011110000101… |
… | …0110010000111111 |
3 | 12011202012021100001 |
4 | 1313201112100333 |
5 | 13101314340110 |
6 | 530551015131 |
7 | 100456115341 |
oct | 16741262077 |
9 | 5152167301 |
10 | 2005230655 |
11 | 93999a51a |
12 | 47b66a4a7 |
13 | 25c58911c |
14 | 15045b291 |
15 | bb09763a |
hex | 7785643f |
2005230655 has 8 divisors (see below), whose sum is σ = 2406563712. Its totient is φ = 1603993248.
The previous prime is 2005230637. The next prime is 2005230659. The reversal of 2005230655 is 5560325002.
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-2005230655 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2005230659) 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, 35749 + ... + 72721.
It is an arithmetic number, because the mean of its divisors is an integer number (300820464).
Almost surely, 22005230655 is an apocalyptic number.
2005230655 is a deficient number, since it is larger than the sum of its proper divisors (401333057).
2005230655 is a wasteful number, since it uses less digits than its factorization.
2005230655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47825.
The product of its (nonzero) digits is 9000, while the sum is 28.
The square root of 2005230655 is about 44779.8018642334. The cubic root of 2005230655 is about 1261.0184624756.
Adding to 2005230655 its reverse (5560325002), we get a palindrome (7565555657).
The spelling of 2005230655 in words is "two billion, five million, two hundred thirty thousand, six hundred fifty-five".
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