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140 (number)

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← 139 140 141 →
Cardinalone hundred [and] forty
Ordinalth
Factorization
Divisors1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70
Greek numeralΡΜ´
Roman numeralCXL
Binary100011002
Ternary120123
Senary3526
Octal2148
DuodecimalB812
Hexadecimal8C16

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