num  = 1234567.89  	 
str1 = 1234567.89 	 
is num a number....... True
round up ............. 1234568
round down............ 1234567
round to 1 decimal.... 1234567.9
convert to integer...: 1234567
convert to float.....: 1234567.0
convert string to num: 1234567.89 
convert num to string: 1234567.89 
multiply by 3........: 3703703.67
take to the power 3..: 1.8816763717891543e+18
take to the power 3..: 1.8816763717891543e+18
take the mininum.....: 100
take the maximum.....: 99999999
sum the list.........: 101234666.89
format a number......: 1,234,567.8900