The value
4700063497
also could be written
4,700,063,497. In words it would be
four billion seven hundred million sixty-three thousand four hundred
ninety seven.
In scientific notation it becomes
4.700063497*109.
In comparison with four-billion, the second value, 63130707451134435989380140059866138830623361447484274774099906755, is enormous.
In fact, since the approximate scientific notation is 6.31307074511344*1064, this value is 1055 times as large.
The value 8365386194032363 becomes
8,365,386,194,032,363 or approximately 8.36539*1015.
The value 3468371109448915 could be written 3,468,371,109,448,915 or
approximately
3.46837*1015.
The value 10991007971508067 or 10,991,007,971,508,067 is, approximately,
1.0991*1016.
Questions
1. Why do three of these numbers occur near 1015?
2. Why are there no such values until over four billion?
3. Are there any values between 4*109 and 1015?
4. What is the number of such values up to the largest one as yet
found?