107. Leap year or ordinary year makes no difference.
There are 365 days in a non-leap year, which is measured in the hundreds and has an Order of Magnitude of 2.
1 day = 86,400 seconds 1 leap year = 366 days = 366 times 86,400 = 31,622,400 seconds. The number of leap seconds added is a decision by the worldwide community of scientists. In any given year, there may be some leap seconds added, or there may be none. If any leap seconds are added to a leap year, the total is the number above PLUS the number of leap seconds.
The exact answer depends on the number of leap years in a 13-year span. These can be 3 or 4. Also, there are leap seconds added from time to time. But, assuming 3 leap years, the number of seconds is 410,227,200 seconds.
47336400 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
164099520 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
142009200 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
1893456000 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
1609437600 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
757382400 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
3153600 (or 31622400 in a leap year)
Approx 568036800 seconds. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
Depending on the number of leap years in the period (19 or 20), it is 2524521600 or 2524608000 seconds, plus any leap seconds.