991216149
991,216,149 is an odd composite number composed of five prime numbers multiplied together.
991216149 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 991216149:
3 × 73 × 112 × 19 × 419
(3 × 7 × 7 × 7 × 11 × 11 × 19 × 419)See below for interesting mathematical facts about the number 991216149 from the Numbermatics database.
Names of 991216149
- Cardinal: 991216149 can be written as Nine hundred ninety-one million, two hundred sixteen thousand, one hundred forty-nine.
Scientific notation
- Scientific notation: 9.91216149 × 108
Factors of 991216149
Divisors of 991216149
- Number of divisors d(n): 96
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Complete list of divisors:
1 3 7 11 19 21 33 49 57 77 121 133 147 209 231 343 363 399 419 539 627 847 931 1029 1257 1463 1617 2299 2541 2793 2933 3773 4389 4609 5929 6517 6897 7961 8799 10241 11319 13827 16093 17787 19551 20531 23883 30723 32263 41503 48279 50699 55727 61593 71687 87571 96789 112651 124509 143717 152097 167181 215061 225841 262713 337953 354893 390089 431151 612997 677523 788557 963281 1064679 1170267 1580887 1838991 2365671 2484251 2730623 2889843 4290979 4742661 6742967 7452753 8191869 12872937 17389757 20228901 30036853 47200769 52169271 90110559 141602307 330405383 991216149
- Sum of all divisors σ(n): 1787520000
- Sum of proper divisors (its aliquot sum) s(n): 796303851
- 991216149 is a deficient number, because the sum of its proper divisors (796303851) is less than itself. Its deficiency is 194912298
Bases of 991216149
- Binary: 1110110001010011000010000101012
- Hexadecimal: 0x3B14C215
- Base-36: GE579X
Squares and roots of 991216149
- 991216149 squared (9912161492) is 982509454038390201
- 991216149 cubed (9912161493) is 973879237388025633194555949
-
The
square root of 991216149 is 31483.5853898503 -
The
cube root of 991216149 is 997.0634346919
Scales and comparisons
How big is 991216149?- 991,216,149 seconds is equal to 31 years, 26 weeks, 6 days, 9 hours, 49 minutes, 9 seconds.
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To count from 1 to 991,216,149 would take you about forty-seven years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 991216149 cubic inches would be around 83.1 feet tall.
Recreational maths with 991216149
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