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140 |
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| Cardinal |
one hundred [and] forty |
| Ordinal |
140th
(one hundred [and] fortieth) |
| Factorization |
 |
| Divisors |
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70 |
| Roman numeral |
CXL |
| Binary |
100011002 |
| Octal |
2148 |
| Duodecimal |
B812 |
| Hexadecimal |
8C16 |
140 is the natural number following 139 and preceding 141.
In mathematics
140 is an abundant number and a harmonic divisor number. It is the sum of the squares of the first seven integers, which makes it a square pyramidal number, and in base 10 it is divisible by the sum of its digits, which makes it a Harshad number.
The sum of Euler's totient function φ(x) over the first twenty-one integers is 140.
In computing
In the military
In sports
In transportation
In other fields
140 is also:
See also
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