Base | Representation |
---|---|
bin | 11101001111000… |
… | …011110110100001 |
3 | 1021011221022221122 |
4 | 131033003312201 |
5 | 2001031042301 |
6 | 120400502025 |
7 | 15104033561 |
oct | 3517036641 |
9 | 1234838848 |
10 | 490487201 |
11 | 23195a326 |
12 | 11831a915 |
13 | 7a804219 |
14 | 491dada1 |
15 | 2d0d981b |
hex | 1d3c3da1 |
490487201 has 2 divisors, whose sum is σ = 490487202. Its totient is φ = 490487200.
The previous prime is 490487189. The next prime is 490487203. The reversal of 490487201 is 102784094.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 459673600 + 30813601 = 21440^2 + 5551^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-490487201 is a prime.
Together with 490487203, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (490487203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245243600 + 245243601.
It is an arithmetic number, because the mean of its divisors is an integer number (245243601).
Almost surely, 2490487201 is an apocalyptic number.
It is an amenable number.
490487201 is a deficient number, since it is larger than the sum of its proper divisors (1).
490487201 is an equidigital number, since it uses as much as digits as its factorization.
490487201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16128, while the sum is 35.
The square root of 490487201 is about 22146.9456359111. The cubic root of 490487201 is about 788.6347198037.
The spelling of 490487201 in words is "four hundred ninety million, four hundred eighty-seven thousand, two hundred one".
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