Base | Representation |
---|---|
bin | 11101001111100… |
… | …110110001000100 |
3 | 1021012012121010100 |
4 | 131033212301010 |
5 | 2001100131322 |
6 | 120403524100 |
7 | 15105200532 |
oct | 3517466104 |
9 | 1235177110 |
10 | 490630212 |
11 | 231a47816 |
12 | 118389630 |
13 | 7a854347 |
14 | 49237152 |
15 | 2d116dac |
hex | 1d3e6c44 |
490630212 has 72 divisors (see below), whose sum is σ = 1278671576. Its totient is φ = 158505984.
The previous prime is 490630199. The next prime is 490630237. The reversal of 490630212 is 212036094.
490630212 is a `hidden beast` number, since 4 + 9 + 0 + 630 + 21 + 2 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 268500996 + 222129216 = 16386^2 + 14904^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448338 + ... + 449430.
Almost surely, 2490630212 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 490630212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639335788).
490630212 is an abundant number, since it is smaller than the sum of its proper divisors (788041364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
490630212 is a wasteful number, since it uses less digits than its factorization.
490630212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1477 (or 1472 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 490630212 is about 22150.1740850947. The cubic root of 490630212 is about 788.7113595747.
The spelling of 490630212 in words is "four hundred ninety million, six hundred thirty thousand, two hundred twelve".
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