### 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 )
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 