Base | Representation |
---|---|
bin | 110001101111100110001 |
3 | 10001210221102 |
4 | 12031330301 |
5 | 404130001 |
6 | 54534145 |
7 | 16566122 |
oct | 6157461 |
9 | 3053842 |
10 | 1630001 |
11 | a1370a |
12 | 667355 |
13 | 450bc9 |
14 | 306049 |
15 | 222e6b |
hex | 18df31 |
1630001 has 4 divisors (see below), whose sum is σ = 1667952. Its totient is φ = 1592052.
The previous prime is 1629997. The next prime is 1630019. The reversal of 1630001 is 1000361.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1000361 = 97 ⋅10313.
It is a cyclic number.
It is not a de Polignac number, because 1630001 - 22 = 1629997 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1630021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18911 + ... + 18996.
It is an arithmetic number, because the mean of its divisors is an integer number (416988).
21630001 is an apocalyptic number.
It is an amenable number.
1630001 is a deficient number, since it is larger than the sum of its proper divisors (37951).
1630001 is an equidigital number, since it uses as much as digits as its factorization.
1630001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37950.
The product of its (nonzero) digits is 18, while the sum is 11.
The square root of 1630001 is about 1276.7149251105. The cubic root of 1630001 is about 117.6872162569.
Adding to 1630001 its reverse (1000361), we get a palindrome (2630362).
The spelling of 1630001 in words is "one million, six hundred thirty thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.106 sec. • engine limits •