391988142
391,988,142 is an even composite number composed of six prime numbers multiplied together.
391988142 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 391988142:
2 × 32 × 72 × 13 × 17 × 2011
(2 × 3 × 3 × 7 × 7 × 13 × 17 × 2011)See below for interesting mathematical facts about the number 391988142 from the Numbermatics database.
Names of 391988142
- Cardinal: 391988142 can be written as Three hundred ninety-one million, nine hundred eighty-eight thousand, one hundred forty-two.
Scientific notation
- Scientific notation: 3.91988142 × 108
Factors of 391988142
Divisors of 391988142
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 6 7 9 13 14 17 18 21 26 34 39 42 49 51 63 78 91 98 102 117 119 126 147 153 182 221 234 238 273 294 306 357 441 442 546 637 663 714 819 833 882 1071 1274 1326 1547 1638 1666 1911 1989 2011 2142 2499 3094 3822 3978 4022 4641 4998 5733 6033 7497 9282 10829 11466 12066 13923 14077 14994 18099 21658 26143 27846 28154 32487 34187 36198 42231 52286 64974 68374 78429 84462 97461 98539 102561 126693 156858 183001 194922 197078 205122 235287 239309 253386 295617 307683 366002 444431 470574 478618 549003 591234 615366 717927 886851 888862 1098006 1281007 1333293 1435854 1647009 1675163 1773702 2153781 2562014 2666586 3111017 3294018 3350326 3843021 3999879 4307562 5025489 6222034 7686042 7999758 9333051 10050978 11529063 15076467 18666102 21777119 23058126 27999153 30152934 43554238 55998306 65331357 130662714 195994071 391988142
- Sum of all divisors σ(n): 1127114352
- Sum of proper divisors (its aliquot sum) s(n): 735126210
- 391988142 is an abundant number, because the sum of its proper divisors (735126210) is greater than itself. Its abundance is 343138068
Bases of 391988142
- Binary: 101110101110101000011101011102
- Hexadecimal: 0x175D43AE
- Base-36: 6HDNZI
Squares and roots of 391988142
- 391988142 squared (3919881422) is 153654703468612164
- 391988142 cubed (3919881423) is 60230821722222237484959288
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The
square root of 391988142 is 19798.6904112367 -
The
cube root of 391988142 is 731.8537623303
Scales and comparisons
How big is 391988142?- 391,988,142 seconds is equal to 12 years, 24 weeks, 21 hours, 35 minutes, 42 seconds.
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To count from 1 to 391,988,142 would take you about eighteen 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 391988142 cubic inches would be around 61 feet tall.
Recreational maths with 391988142
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"Number 391988142 - Facts about the integer". Numbermatics.com. 2024. Web. 12 May 2024.
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Numbermatics. (2024). Number 391988142 - Facts about the integer. Retrieved 12 May 2024, from https://numbermatics.com/n/391988142/
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