21009318177442
21,009,318,177,442 is an even composite number composed of four prime numbers multiplied together.
21009318177442 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21009318177442:
2 × 77 × 293 × 523
(2 × 7 × 7 × 7 × 7 × 7 × 7 × 7 × 29 × 29 × 29 × 523)See below for interesting mathematical facts about the number 21009318177442 from the Numbermatics database.
Names of 21009318177442
- Cardinal: 21009318177442 can be written as Twenty-one trillion, nine billion, three hundred eighteen million, one hundred seventy-seven thousand, four hundred forty-two.
Scientific notation
- Scientific notation: 2.1009318177442 × 1013
Factors of 21009318177442
Divisors of 21009318177442
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 7 14 29 49 58 98 203 343 406 523 686 841 1046 1421 1682 2401 2842 3661 4802 5887 7322 9947 11774 15167 16807 19894 24389 25627 30334 33614 41209 48778 51254 69629 82418 106169 117649 139258 170723 179389 212338 235298 288463 341446 358778 439843 487403 576926 743183 823543 879686 974806 1195061 1255723 1486366 1647086 2019241 2390122 2511446 3078901 3411821 4038482 5202281 6157802 6823642 8365427 8790061 10404562 12755447 14134687 16730854 17580122 21552307 23882747 25510894 28269374 36415967 43104614 47765494 58557989 61530427 72831934 89288129 98942809 117115978 123060854 150866149 178576258 197885618 254911769 301732298 409905923 430712989 509823538 625016903 692599663 819811846 861425978 1056063043 1250033806 1385199326 1784382383 2112126086 2869341461 3568764766 4375118321 5738682922 7392441301 8750236642 12490676681 14784882602 20085390227 24981353362 30625828247 40170780454 51747089107 61251656494 103494178214 214380797729 362229623749 428761595458 724459247498 1500665584103 3001331168206 10504659088721 21009318177442
- Sum of all divisors σ(n): 38152138176000
- Sum of proper divisors (its aliquot sum) s(n): 17142819998558
- 21009318177442 is a deficient number, because the sum of its proper divisors (17142819998558) is less than itself. Its deficiency is 3866498178884
Bases of 21009318177442
- Binary: 1001100011011100111001111001001101010101000102
- Hexadecimal: 0x131B9CF26AA2
- Base-36: 7G3JPLJFM
Squares and roots of 21009318177442
- 21009318177442 squared (210093181774422) is 441391450280994840597663364
- 21009318177442 cubed (210093181774423) is 9273333419755991683235906176556334634888
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The
square root of 21009318177442 is 4583592.2787091349 -
The
cube root of 21009318177442 is 27593.3218183401
Scales and comparisons
How big is 21009318177442?- 21,009,318,177,442 seconds is equal to 668,031 years, 17 weeks, 1 day, 19 hours, 57 minutes, 22 seconds.
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To count from 1 to 21,009,318,177,442 would take you about one million, six hundred seventy thousand and seventy-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 21009318177442 cubic inches would be around 2299.4 feet tall.
Recreational maths with 21009318177442
- 21009318177442 backwards is 24477181390012
- 21009318177442 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21009318177442's digits is 49
- More coming soon!
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