72142140
72,142,140 is an even composite number composed of six prime numbers multiplied together.
72142140 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 72142140:
22 × 3 × 5 × 7 × 29 × 5923
(2 × 2 × 3 × 5 × 7 × 29 × 5923)See below for interesting mathematical facts about the number 72142140 from the Numbermatics database.
Names of 72142140
- Cardinal: 72142140 can be written as Seventy-two million, one hundred forty-two thousand, one hundred forty.
Scientific notation
- Scientific notation: 7.214214 × 107
Factors of 72142140
Divisors of 72142140
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 14 15 20 21 28 29 30 35 42 58 60 70 84 87 105 116 140 145 174 203 210 290 348 406 420 435 580 609 812 870 1015 1218 1740 2030 2436 3045 4060 5923 6090 11846 12180 17769 23692 29615 35538 41461 59230 71076 82922 88845 118460 124383 165844 171767 177690 207305 248766 343534 355380 414610 497532 515301 621915 687068 829220 858835 1030602 1202369 1243830 1717670 2061204 2404738 2487660 2576505 3435340 3607107 4809476 5153010 6011845 7214214 10306020 12023690 14428428 18035535 24047380 36071070 72142140
- Sum of all divisors σ(n): 238855680
- Sum of proper divisors (its aliquot sum) s(n): 166713540
- 72142140 is an abundant number, because the sum of its proper divisors (166713540) is greater than itself. Its abundance is 94571400
Bases of 72142140
- Binary: 1000100110011001101001111002
- Hexadecimal: 0x44CCD3C
- Base-36: 16Y98C
Squares and roots of 72142140
- 72142140 squared (721421402) is 5204488363779600
- 72142140 cubed (721421403) is 375462928168158832344000
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The
square root of 72142140 is 8493.6529243901 -
The
cube root of 72142140 is 416.2903468001
Scales and comparisons
How big is 72142140?- 72,142,140 seconds is equal to 2 years, 15 weeks, 1 day, 23 hours, 29 minutes.
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To count from 1 to 72,142,140 would take you about three 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 72142140 cubic inches would be around 34.7 feet tall.
Recreational maths with 72142140
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