About the Number 1400 (one thousand four hundred)

@nanofoo tweeted tweet# 1400 on 1 February 2010.

[update: 2011.03.28] @mathbabbler tweeted tweet# 1400 on 18 March 2011.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   1400 is a natural, whole, integer
   1400 is even
   1400 proper divisors are: 1,2,4,5,7,8,10,14,20,25,28,35,40,50,
                             56,70,100,140,175,200,280,350,700
   1400 is abundant (sum of divisors is 2320)
   1400 is unhappy
   1400 is a Harshad number
   1400 is not prime
   1400 has the prime factors: 2*2*2*5*5*7 (sum=23)
   1400 sum of prime factors is: 23
   1400 in octal is 02570
   1400 in hexadecimal is 0x578
   1400 in binary is 10101111000 (is evil)
   1400 nearest square numbers: -31...44 (1369...1444 [38])
   sqrt(1400) = 37.4166
   ln(1400) = 7.24423
   log(1400) = 3.14613
   1400 reciprocal is .00071428571428571428571428571428
   1400! is 3.46063e+3798
   1400 is 445.634 Pi years
   1400 is 70 scoreyears
   1400 written as a Roman numeral is MCD

log(1400) equals Pi truncated to two decimal digits.

1400 = 10^3 + 20^2

[NumDic.com] 1400 = 351^2-349^2 and 2*(351+349) = 1400

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 February 2010