### About the Number 4,020 (four thousand twenty)

nBAB# 666 was BAB# 4020. This nBAB about the number 4020 was posted on 22 August 2014. The nBAB for the number 666 was created on 10 April 2009.

```MathBabbler Number Analyst (MBNA) output:
=========================================
4020 is a natural, whole, integer
4020 is even
4020 proper divisors are: 1,2,3,4,5,6,10,12,15,20,30,60,67,134,
201,268,335,402,670,804,1005,1340,2010,
4020 has 23 proper divisors
4020 is abundant (sum of divisors is 7404; ratio: 1.84179)
4020 is unhappy
4020 is not a Squarefree Number: 4,
4020 is Harshad (Niven) number
4020 is composite (not prime)
4020 has the prime factors: 2*2*3*5*67 (sum=79)
4020 is not in A038853
4020 in octal is 07664
4020 in hexadecimal is 0xfb4
4020 in binary is 111110110100 (is evil)
4020 nearest square numbers: -51...76 (3969...4096 )
sqrt(4020) = 63.4035
ln(4020) = 8.29904
log(4020) = 3.60423
4020 reciprocal is .00024875621890547263681592039800
4020 is 1279.61 Pi years
4020 is 201 scoreyears
4020 is 1006^2 - 1004^2 and 2 * (1006 + 1004)
4020 is a multiple of 2 & it contains a 2 (A121022)
4020 is a multiple of 4 & it contains a 4 (A121024)
4020 is a multiple of 20 & it contains a 20 (A121040)
4020 is a multiple of 402 & it contains a 402
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 22 August 2014 