21006990100
21,006,990,100 is an even composite number composed of six prime numbers multiplied together.
21006990100 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 21006990100:
22 × 52 × 17 × 71 × 269 × 647
(2 × 2 × 5 × 5 × 17 × 71 × 269 × 647)See below for interesting mathematical facts about the number 21006990100 from the Numbermatics database.
Names of 21006990100
- Cardinal: 21006990100 can be written as Twenty-one billion, six million, nine hundred ninety thousand, one hundred.
Scientific notation
- Scientific notation: 2.10069901 × 1010
Factors of 21006990100
Divisors of 21006990100
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 10 17 20 25 34 50 68 71 85 100 142 170 269 284 340 355 425 538 647 710 850 1076 1207 1294 1345 1420 1700 1775 2414 2588 2690 3235 3550 4573 4828 5380 6035 6470 6725 7100 9146 10999 12070 12940 13450 16175 18292 19099 21998 22865 24140 26900 30175 32350 38198 43996 45730 45937 54995 60350 64700 76396 91460 91874 95495 109990 114325 120700 174043 183748 190990 219980 228650 229685 274975 324683 348086 381980 457300 459370 477475 549950 649366 696172 780929 870215 918740 954950 1099900 1148425 1298732 1561858 1623415 1740430 1909900 2296850 2958731 3123716 3246830 3480860 3904645 4351075 4593700 5917462 6493660 7809290 8117075 8702150 11834924 12357053 14793655 15618580 16234150 17404300 19523225 24714106 29587310 32468300 39046450 49428212 59174620 61785265 73968275 78092900 123570530 147936550 210069901 247141060 295873100 308926325 420139802 617852650 840279604 1050349505 1235705300 2100699010 4201398020 5251747525 10503495050 21006990100
- Sum of all divisors σ(n): 49204350720
- Sum of proper divisors (its aliquot sum) s(n): 28197360620
- 21006990100 is an abundant number, because the sum of its proper divisors (28197360620) is greater than itself. Its abundance is 7190370520
Bases of 21006990100
- Binary: 100111001000001110100111011000101002
- Hexadecimal: 0x4E41D3B14
- Base-36: 9NF0PAS
Squares and roots of 21006990100
- 21006990100 squared (210069901002) is 441293633061498010000
- 21006990100 cubed (210069901003) is 9270250980915921387239701000000
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The
square root of 21006990100 is 144937.8835915579 -
The
cube root of 21006990100 is 2759.2302560085
Scales and comparisons
How big is 21006990100?- 21,006,990,100 seconds is equal to 667 years, 49 weeks, 5 days, 11 hours, 1 minute, 40 seconds.
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To count from 1 to 21,006,990,100 would take you about one thousand, three hundred thirty-five 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 21006990100 cubic inches would be around 229.9 feet tall.
Recreational maths with 21006990100
- 21006990100 backwards is 00109960012
- The number of decimal digits it has is: 11
- The sum of 21006990100's digits is 28
- More coming soon!
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