This nBAB for the number 9999 was created after nBABs for the numbers 1818 and 8181 were created. The sum of 1818 and 8181 is 9999.
MathBabbler Number Analyst (MBNA) output: ========================================= 9999 is a natural, whole, integer 9999 is odd 9999 proper divisors are: 1,3,9,11,33,99,101,303,909,1111,3333, 9999 has 11 proper divisors 9999 is deficient (sum of divisors is 5913; ratio: 0.591359) 9999 is unhappy 9999 is not a Squarefree Number: 9, 9999 is composite (not prime) 9999 has the prime factors: 3*3*11*101 (sum=118) 9999 is undulating 9999 is palindromic 9999 has all palindromic proper divisors (1,3,9,11,33,99,101,303,909,1111,3333) 9999 is repdigit in base-10 9999 is Kaprekar number 9999 is a lucky number 9999 is Arithmetic (A003601) 9999 is ThurmNumber 9999 is the sum of 31 consecutive primes 9999 = 233 + 239 + 241 + 251 + 257 + 263 + 269 + 271 + 277 + 281 + 283 + 293 + 307 + 311 + 313 + 317 + 331 + 337 + 347 + 349 + 353 + 359 + 367 + 373 + 379 + 383 + 389 + 397 + 401 + 409 + 419 9999 in octal is 023417 9999 in hexadecimal is 0x270f 9999 in binary is 10011100001111 (is evil) 9999 nearest square numbers: -198...1 (9801...10000 [100]) sqrt(9999) = 99.995 ln(9999) = 9.21024 log(9999) = 3.99996 9999 reciprocal is .00010001000100010001000100010001 9999 is an apocalyptic power 9999! is inf 9999 is 3182.78 Pi years 9999 is 499 score and 19 years 9999 is 5000^2 - 4999^2 and 5000 + 4999 = 9999 9999 is a multiple of 9 & it contains a 9 (A121029) 9999 is a multiple of 99 & it contains a 99
Creator: Gerald Thurman
[gthurman@gmail.com]
Created: 06 May 2015 (posted 07 May 2015)