81009142929
81,009,142,929 is an odd composite number composed of five prime numbers multiplied together.
81009142929 is an odd 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 81009142929:
33 × 112 × 132 × 31 × 4733
(3 × 3 × 3 × 11 × 11 × 13 × 13 × 31 × 4733)See below for interesting mathematical facts about the number 81009142929 from the Numbermatics database.
Names of 81009142929
- Cardinal: 81009142929 can be written as Eighty-one billion, nine million, one hundred forty-two thousand, nine hundred twenty-nine.
Scientific notation
- Scientific notation: 8.1009142929 × 1010
Factors of 81009142929
Divisors of 81009142929
- Number of divisors d(n): 144
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Complete list of divisors:
1 3 9 11 13 27 31 33 39 93 99 117 121 143 169 279 297 341 351 363 403 429 507 837 1023 1089 1209 1287 1521 1573 1859 3069 3267 3627 3751 3861 4433 4563 4719 4733 5239 5577 9207 10881 11253 13299 14157 14199 15717 16731 20449 33759 39897 42471 42597 47151 48763 50193 52063 57629 61347 61529 101277 119691 127791 141453 146289 146723 156189 172887 184041 184587 438867 440169 468567 518661 552123 553761 572693 633919 676819 799877 1316601 1320507 1405701 1555983 1613953 1661283 1718079 1901757 1907399 2030457 2399631 3961521 4841859 5154237 5705271 5722197 6091371 7198893 7445009 8798647 14525577 15462711 17115813 17166591 17753483 18274113 20981389 21596679 22335027 24796187 26395941 43576731 51499773 53260449 62944167 67005081 74388561 79187823 96785117 159781347 188832501 201015243 223165683 230795279 237563469 272758057 290355351 479344041 566497503 669497049 692385837 818274171 871066053 2077157511 2454822513 2613198159 3000338627 6231472533 7364467539 9001015881 27003047643 81009142929
- Sum of all divisors σ(n): 147482657280
- Sum of proper divisors (its aliquot sum) s(n): 66473514351
- 81009142929 is a deficient number, because the sum of its proper divisors (66473514351) is less than itself. Its deficiency is 14535628578
Bases of 81009142929
- Binary: 10010110111001000010101101100100100012
- Hexadecimal: 0x12DC856C91
- Base-36: 117QR2Q9
Squares and roots of 81009142929
- 81009142929 squared (810091429292) is 6562481238091150699041
- 81009142929 cubed (810091429293) is 531620980585406906108690632231089
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The
square root of 81009142929 is 284621.0514508721 -
The
cube root of 81009142929 is 4326.9114996791
Scales and comparisons
How big is 81009142929?- 81,009,142,929 seconds is equal to 2,575 years, 43 weeks, 4 days, 19 hours, 42 minutes, 9 seconds.
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To count from 1 to 81,009,142,929 would take you about five thousand, one hundred fifty-one 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 81009142929 cubic inches would be around 360.6 feet tall.
Recreational maths with 81009142929
- 81009142929 backwards is 92924190018
- The number of decimal digits it has is: 11
- The sum of 81009142929's digits is 45
- More coming soon!
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The information we have on file for 81009142929 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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