Base | Representation |
---|---|
bin | 10011110011010010010101 |
3 | 100202201110001 |
4 | 103303102111 |
5 | 2312101210 |
6 | 303131301 |
7 | 62056354 |
oct | 23632225 |
9 | 10681401 |
10 | 5190805 |
11 | 2a25a24 |
12 | 18a3b31 |
13 | 10c98a9 |
14 | 99199b |
15 | 6c803a |
hex | 4f3495 |
5190805 has 8 divisors (see below), whose sum is σ = 6381144. Its totient is φ = 4051200.
The previous prime is 5190791. The next prime is 5190817. The reversal of 5190805 is 5080915.
It can be written as a sum of positive squares in 4 ways, for example, as 213444 + 4977361 = 462^2 + 2231^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 5190805 - 29 = 5190293 is a prime.
It is a Duffinian number.
It is a congruent number.
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, 12456 + ... + 12865.
It is an arithmetic number, because the mean of its divisors is an integer number (797643).
Almost surely, 25190805 is an apocalyptic number.
It is an amenable number.
5190805 is a deficient number, since it is larger than the sum of its proper divisors (1190339).
5190805 is a wasteful number, since it uses less digits than its factorization.
5190805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25367.
The product of its (nonzero) digits is 1800, while the sum is 28.
The square root of 5190805 is about 2278.3338210192. Note that the first 3 decimals coincide. The cubic root of 5190805 is about 173.1456445555.
It can be divided in two parts, 5190 and 805, that added together give a palindrome (5995).
The spelling of 5190805 in words is "five million, one hundred ninety thousand, eight hundred five".
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