72940386420
72,940,386,420 is an even composite number composed of five prime numbers multiplied together.
72940386420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 72940386420:
22 × 32 × 5 × 11 × 36838579
(2 × 2 × 3 × 3 × 5 × 11 × 36838579)See below for interesting mathematical facts about the number 72940386420 from the Numbermatics database.
Names of 72940386420
- Cardinal: 72940386420 can be written as Seventy-two billion, nine hundred forty million, three hundred eighty-six thousand, four hundred twenty.
Scientific notation
- Scientific notation: 7.294038642 × 1010
Factors of 72940386420
Divisors of 72940386420
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 36838579 73677158 110515737 147354316 184192895 221031474 331547211 368385790 405224369 442062948 552578685 663094422 736771580 810448738 1105157370 1215673107 1326188844 1620897476 1657736055 2026121845 2210314740 2431346214 3315472110 3647019321 4052243690 4862692428 6078365535 6630944220 7294038642 8104487380 12156731070 14588077284 18235096605 24313462140 36470193210 72940386420
- Sum of all divisors σ(n): 241366376160
- Sum of proper divisors (its aliquot sum) s(n): 168425989740
- 72940386420 is an abundant number, because the sum of its proper divisors (168425989740) is greater than itself. Its abundance is 95485603320
Bases of 72940386420
- Binary: 10000111110111001010111111000011101002
- Hexadecimal: 0x10FB95F874
- Base-36: XIATMD0
Squares and roots of 72940386420
- 72940386420 squared (729403864202) is 5320299971098920416400
- 72940386420 cubed (729403864203) is 388064735762270087217043305288000
-
The
square root of 72940386420 is 270074.7793112123 -
The
cube root of 72940386420 is 4178.2012364647
Scales and comparisons
How big is 72940386420?- 72,940,386,420 seconds is equal to 2,319 years, 14 weeks, 3 days, 10 hours, 27 minutes.
-
To count from 1 to 72,940,386,420 would take you about four thousand, six hundred thirty-eight 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 72940386420 cubic inches would be around 348.2 feet tall.
Recreational maths with 72940386420
- 72940386420 backwards is 02468304927
- 72940386420 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 72940386420's digits is 45
- More coming soon!
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