87 years old
No, the number 87 is composite.
87 tens is 87087 tenths is 8.7
87 is, itself, a whole number.
yes
87 is composite.
87 is not a prime number because 87 is divisible by 3 and 29.
87 / 1.2 = 72.5 Therefore, the number that 87 is 120 percent of, is 72.5.
Since the sum of the proper factors of 87 is only 33, 87 is not an abundant number.
87 is greater than the decimal number 13.688
The factors of 87 are 1, 3, 29, and 87, so it is a composite number.
Take any multiple of 87, and you get a number that is divisible by 87 - for example:87 x 0 87 x 1 87 x 2 87 x 3 ... 87 x (-1) 87 x (-2) ...