### About the Number 4,981 (four thousand nine hundred eighty-one)

BAB# 4981 was posted on 12 April 2016. The digits of 4981 split into two 2-digit numbers results in the square numbers 49 and 81. [And it can split into the square numbers 4 and 9, the cuban number 8, and the square number 1 (4|9|8|1).]

```MathBabbler Number Analyst (MBNA) output:
=========================================
4981 is a natural, whole, integer
4981 is odd
4981 proper divisors are: 1,17,293,
4981 has 3 proper divisors
4981 is deficient (sum of divisors is 311; ratio: 0.0624373)
4981 is unhappy
4981 is a Squarefree Number
4981 is composite (not prime)
4981 has the prime factors: 17*293 (sum=310)
4981 is semiprime (biprime or 2-almost prime)
4981 is a joke (Smith) number
4981 is a hoax number
4981 is a 293-smooth number
4981 is Arithmetic (A003601)
4981 in octal is 011565
4981 in hexadecimal is 0x1375
4981 in binary is 1001101110101 (is evil)
4981 nearest square numbers: -81...60 (4900...5041 )
sqrt(4981) = 70.5762
ln(4981) = 8.51339
log(4981) = 3.69732
4981 reciprocal is .00020076289901626179482031720538
4981 is an apocalyptic power
4981! is inf
4981 is 1585.5 Pi years
4981 is 249 score and 1 year
4981 is 2491^2 - 2490^2 and 2491 + 2490 = 4981
4981 is a multiple of 1 & it contains a 1 (A011531)
```

log15(`4981`) = 3.14373, which when rounded to the nearest hundredth (3.14) equals Pi rounded to the nearest hundredth.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 13 April 2016 