84145920
84,145,920 is an even composite number composed of five prime numbers multiplied together.
84145920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 84145920:
28 × 3 × 5 × 17 × 1289
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 17 × 1289)See below for interesting mathematical facts about the number 84145920 from the Numbermatics database.
Names of 84145920
- Cardinal: 84145920 can be written as Eighty-four million, one hundred forty-five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.414592 × 107
Factors of 84145920
Divisors of 84145920
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 68 80 85 96 102 120 128 136 160 170 192 204 240 255 256 272 320 340 384 408 480 510 544 640 680 768 816 960 1020 1088 1280 1289 1360 1632 1920 2040 2176 2578 2720 3264 3840 3867 4080 4352 5156 5440 6445 6528 7734 8160 10312 10880 12890 13056 15468 16320 19335 20624 21760 21913 25780 30936 32640 38670 41248 43826 51560 61872 65280 65739 77340 82496 87652 103120 109565 123744 131478 154680 164992 175304 206240 219130 247488 262956 309360 328695 329984 350608 412480 438260 494976 525912 618720 657390 701216 824960 876520 989952 1051824 1237440 1314780 1402432 1649920 1753040 2103648 2474880 2629560 2804864 3506080 4207296 4949760 5259120 5609728 7012160 8414592 10518240 14024320 16829184 21036480 28048640 42072960 84145920
- Sum of all divisors σ(n): 284770080
- Sum of proper divisors (its aliquot sum) s(n): 200624160
- 84145920 is an abundant number, because the sum of its proper divisors (200624160) is greater than itself. Its abundance is 116478240
Bases of 84145920
- Binary: 1010000001111110111000000002
- Hexadecimal: 0x503F700
- Base-36: 1E3JEO
Squares and roots of 84145920
- 84145920 squared (841459202) is 7080535852646400
- 84145920 cubed (841459203) is 595798203413915762688000
-
The
square root of 84145920 is 9173.1085243771 -
The
cube root of 84145920 is 438.2053622999
Scales and comparisons
How big is 84145920?- 84,145,920 seconds is equal to 2 years, 35 weeks, 21 hours, 52 minutes.
-
To count from 1 to 84,145,920 would take you about four 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 84145920 cubic inches would be around 36.5 feet tall.
Recreational maths with 84145920
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