### About the Number 140 (one hundred forty)

Twitter announced that it has received another \$35 million from investors. Messages posted to Twitter are called tweets and the maximum length of the tweet is `140` characters.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
140 is a natural, whole, integer
140 is even
140 proper divisors are: 1,2,4,5,7,10,14,20,28,35,70,
140 is abundant (sum of divisors is 196)
140 is unhappy
140 is a Harshad number
140 is not prime
140 has the prime factors: 2*2*5*7
140 in octal is 0214
140 in hexadecimal is 0x8c
140 in binary is 10001100 (is odious)
140 nearest square numbers: -19...4 (121 ...144 )
sqrt(140) = 11.8322
ln(140) = 4.94164
log(140) = 2.14613
140 reciprocal is .00714285714285714285714285714285
140! is 1.3462e+241
140 is 44.5634 Pi years
140 is 7 scoreyears
140 written as a Roman numeral is CXL
```

`[Wikipedia]` `140` is a harmonic divisor number.

`[Wikipedia]` `140` is the sum of the squares of the first seven integers.

##### Update::2009.03.25

nBAB #`140`, which was about the number 45, was created on 25 March 2009.

##### Update::2015.02.10

BAB::MathBabbler is `140` Days Older Than MKNZ was posted on 10 February 2015 after MathBabbler discovered he was `140` days older than MKNZ. MathBabbler noticed that this nBAB for the number `140` was four days away from turing six years old, so updated MBNA was added to this nBAB.

```140 is a natural, whole, integer
140 is even
140 proper divisors are: 1,2,4,5,7,10,14,20,28,35,70,
140 has 11 proper divisors
140 is abundant (sum of divisors is 196; ratio: 1.4)
140 is unhappy
140 is not a Squarefree Number: 4,
140 is Harshad (Niven) number
140 is composite (not prime)
140 has the prime factors: 2*2*5*7 (sum=16)
140 is Arithmetic (A003601)
140 is a harmonic (Ore) number
140 is not in A038853
140 in octal is 0214
140 in hexadecimal is 0x8c
140 in binary is 10001100 (is odious)
140 nearest square numbers: -19...4 (121...144 )
sqrt(140) = 11.8322
ln(140) = 4.94164
log(140) = 2.14613
140 reciprocal is .00714285714285714285714285714285
140! is 1.3462e+241
140 is 44.5634 Pi years
140 is 7 scoreyears
140 written as a Roman numeral is CXL
140 is 36^2 - 34^2 and 2 * (36 + 34)
140 is a multiple of 1 & it contains a 1 (A011531)
140 is a multiple of 4 & it contains a 4 (A121024)
140 is a multiple of 14 & it contains a 14 (A121034)
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 14 February 2009 