21038127990
21,038,127,990 is an even composite number composed of seven prime numbers multiplied together.
What does the number 21038127990 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 128 divisors.
21038127990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21038127990:
2 × 3 × 5 × 11 × 31 × 683 × 3011
See below for interesting mathematical facts about the number 21038127990 from the Numbermatics database.
Names of 21038127990
- Cardinal: 21038127990 can be written as Twenty-one billion, thirty-eight million, one hundred twenty-seven thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.103812799 × 1010
Factors of 21038127990
Divisors of 21038127990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 31 33 55 62 66 93 110 155 165 186 310 330 341 465 682 683 930 1023 1366 1705 2046 2049 3011 3410 3415 4098 5115 6022 6830 7513 9033 10230 10245 15026 15055 18066 20490 21173 22539 30110 33121 37565 42346 45078 45165 63519 66242 75130 90330 93341 99363 105865 112695 127038 165605 186682 198726 211730 225390 232903 280023 317595 331210 465806 466705 496815 560046 635190 698709 933410 993630 1026751 1164515 1397418 1400115 2053502 2056513 2329030 2800230 3080253 3493545 4113026 5133755 6160506 6169539 6987090 10267510 10282565 12339078 15401265 20565130 22621643 30802530 30847695 45243286 61695390 63751903 67864929 113108215 127503806 135729858 191255709 226216430 318759515 339324645 382511418 637519030 678649290 701270933 956278545 1402541866 1912557090 2103812799 3506354665 4207625598 7012709330 10519063995 21038127990
- Sum of all divisors σ(n): 56960630784
- Sum of proper divisors (its aliquot sum) s(n): 35922502794
- 21038127990 is an abundant number, because the sum of its proper divisors (35922502794) is greater than itself. Its abundance is 14884374804
Bases of 21038127990
- Binary: 100111001011111100001011011011101102
- Hexadecimal: 0x4E5F85B76
- Base-36: 9NXK3G6
Squares and roots of 21038127990
- 21038127990 squared (210381279902) is 442602829323621440100
- 21038127990 cubed (210381279903) is 9311534972046472987131918399000
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The
square root of 21038127990 is 145045.2618667703 -
The
cube root of 21038127990 is 2760.5928848661
Scales and comparisons
How big is 21038127990?- 21,038,127,990 seconds is equal to 668 years, 49 weeks, 1 day, 20 hours, 26 minutes, 30 seconds.
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To count from 1 to 21,038,127,990 would take you about one thousand, three hundred thirty-seven 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 21038127990 cubic inches would be around 230 feet tall.
Recreational maths with 21038127990
- 21038127990 backwards is 09972183012
- The number of decimal digits it has is: 11
- The sum of 21038127990's digits is 42
- More coming soon!
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