There are 31,540,000,000,000,000 (31 quadrillion, 540 trillion) seconds in 1 billion years.
1 trillion years
A quadrillion is 10 to the 15th power. This is illustrated even more when you convert that to years (in seconds, not days). 1 year = 365 days. 365 days is 31,536,000 seconds (60 seconds * 60 minutes * 24 days * 365 days). 10 to the 15th power divided by 31,536,000 seconds = 31709791.983764585 years. Rounded up that is 31,709,792 years.
1,000,000,000,000,000 years
1,000,000,000,000,000 = 1 quadrillion 1,000,000,000 = 1quadrillion / 1 million
1 quadrillion would be 1000 million million.
1 million seconds is about 0.0317 years.
Approximately 24,020,167.4277 years, give or take a day depending on how close to a leap year you started the quadrillion second count. 1 quadrillion is 1 with 15 zeros => 1,000,000,000,000,000. 1 quadrillion divided by 86,400 (seconds in a day) is around 11,574,074,074.0741 days. If you take this number of days, and divide by 365, you get approximately 31,709,791.9838. To compensate for leap year, you have to subtract a day for every 4 years, but then you have to re-add a day for every 100 years, and then finally subtract an additional day for every 400 years. The reason for this, is a leap year happens every 4 years, unless the year is evenly divisible by 100, unless it is also evenly divisible by 400.
1 trillion years = 3.1556926 × 1019 seconds.
1,000,000,000 seconds or 31.688 years
31,688.7646 years
1 quadrillion /1 crore = 1015/107 = 108 = One hundred million.