Base | Representation |
---|---|
bin | 11101001110111… |
… | …001000111000101 |
3 | 1021011212002121011 |
4 | 131032321013011 |
5 | 2001023140310 |
6 | 120355522221 |
7 | 15103461400 |
oct | 3516710705 |
9 | 1234762534 |
10 | 490443205 |
11 | 23192a26a |
12 | 1182b9371 |
13 | 7a7ba1a5 |
14 | 491c8d37 |
15 | 2d0cb78a |
hex | 1d3b91c5 |
490443205 has 12 divisors (see below), whose sum is σ = 684619020. Its totient is φ = 336303744.
The previous prime is 490443203. The next prime is 490443229. The reversal of 490443205 is 502344094.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 108201604 + 382241601 = 10402^2 + 19551^2 .
It is not a de Polignac number, because 490443205 - 21 = 490443203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (490443203) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000660 + ... + 1001149.
It is an arithmetic number, because the mean of its divisors is an integer number (57051585).
Almost surely, 2490443205 is an apocalyptic number.
It is an amenable number.
490443205 is a deficient number, since it is larger than the sum of its proper divisors (194175815).
490443205 is a wasteful number, since it uses less digits than its factorization.
490443205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2001828 (or 2001821 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 31.
The square root of 490443205 is about 22145.9523389716. The cubic root of 490443205 is about 788.6111392968.
Adding to 490443205 its reverse (502344094), we get a palindrome (992787299).
The spelling of 490443205 in words is "four hundred ninety million, four hundred forty-three thousand, two hundred five".
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