Base | Representation |
---|---|
bin | 111011110000110… |
… | …1010101111001001 |
3 | 12011202100112100121 |
4 | 1313201222233021 |
5 | 13101330031010 |
6 | 530552503241 |
7 | 100456614655 |
oct | 16741525711 |
9 | 5152315317 |
10 | 2005314505 |
11 | 939a47517 |
12 | 47b6aab21 |
13 | 25c5b833c |
14 | 15047da65 |
15 | bb0b23da |
hex | 7786abc9 |
2005314505 has 8 divisors (see below), whose sum is σ = 2407060872. Its totient is φ = 1603795968.
The previous prime is 2005314491. The next prime is 2005314523. The reversal of 2005314505 is 5054135002.
It can be written as a sum of positive squares in 4 ways, for example, as 279825984 + 1725488521 = 16728^2 + 41539^2 .
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 2005314505 - 29 = 2005313993 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2005314505.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36952 + ... + 73321.
It is an arithmetic number, because the mean of its divisors is an integer number (300882609).
Almost surely, 22005314505 is an apocalyptic number.
It is an amenable number.
2005314505 is a deficient number, since it is larger than the sum of its proper divisors (401746367).
2005314505 is a wasteful number, since it uses less digits than its factorization.
2005314505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113915.
The product of its (nonzero) digits is 3000, while the sum is 25.
The square root of 2005314505 is about 44780.7381024476. The cubic root of 2005314505 is about 1261.0360389946.
Adding to 2005314505 its reverse (5054135002), we get a palindrome (7059449507).
The spelling of 2005314505 in words is "two billion, five million, three hundred fourteen thousand, five hundred five".
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