About the Number 1,001 (one thousand one)

RoadHacker found an exit sign for TX Farm Hwy-1001 while traveling west through Texas on I-30. 1001 is a palindromic 4-digit highway number.

MathBabbler Number Analyst (MBNA) output:
=========================================
1001 is a natural, whole, integer
1001 is odd
1001 proper divisors are: 1,7,11,13,77,91,143,
1001 has 7 proper divisors
1001 is deficient (sum of divisors is 343; ratio: 0.342657)
1001 is unhappy
1001 is a Squarefree Number
1001 is composite (not prime)
1001 has the prime factors: 7*11*13 (sum=31)
1001 is sphenic (had 3 unique prime factors)
1001 is pentagonal
1001 is palindromic
1001 is the sum of 15 consecutive primes
1001 = 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 + 71 + 
       73 + 79 + 83 + 89 + 97 + 101
1001 in octal is 01751
1001 in hexadecimal is 0x3e9
1001 in binary is 1111101001 (is odious)
1001 nearest square numbers: -40...23 (961...1024 [32])
sqrt(1001) = 31.6386
ln(1001) = 6.90875
log(1001) = 3.00043
1001 reciprocal is .00099900099900099900099900099900
1001 is 318.628 Pi years
1001 is 50 score and 1 year
1001 written as a Roman numeral is MI
1001 is 501^2 - 500^2 and 501 + 500 = 1001

log9(1001) = 3.14431, which when rounded to the nearest hundredth (3.14) equals Pi (3.14159265...) rounded to the nearest hundredth.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 31 May 2014

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 United States License.