21097981990908
21,097,981,990,908 is an even composite number composed of five prime numbers multiplied together.
21097981990908 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 21097981990908:
22 × 35 × 372 × 612 × 4261
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 37 × 37 × 61 × 61 × 4261)See below for interesting mathematical facts about the number 21097981990908 from the Numbermatics database.
Names of 21097981990908
- Cardinal: 21097981990908 can be written as Twenty-one trillion, ninety-seven billion, nine hundred eighty-one million, nine hundred ninety thousand, nine hundred eight.
Scientific notation
- Scientific notation: 2.1097981990908 × 1013
Factors of 21097981990908
Divisors of 21097981990908
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 37 54 61 74 81 108 111 122 148 162 183 222 243 244 324 333 366 444 486 549 666 732 972 999 1098 1332 1369 1647 1998 2196 2257 2738 2997 3294 3721 3996 4107 4261 4514 4941 5476 5994 6588 6771 7442 8214 8522 8991 9028 9882 11163 11988 12321 12783 13542 14823 14884 16428 17044 17982 19764 20313 22326 24642 25566 27084 29646 33489 35964 36963 38349 40626 44652 49284 51132 59292 60939 66978 73926 76698 81252 83509 100467 110889 115047 121878 133956 137677 147852 153396 157657 167018 182817 200934 221778 230094 243756 250527 259921 275354 301401 315314 332667 334036 345141 365634 401868 413031 443556 460188 472971 501054 519842 548451 550708 602802 630628 665334 690282 731268 751581 779763 826062 904203 945942 1002108 1035423 1039684 1096902 1205604 1239093 1330668 1380564 1418913 1503162 1559526 1652124 1808406 1891884 2070846 2193804 2254743 2339289 2478186 2837826 3006324 3119052 3616812 3717279 4141692 4256739 4509486 4678578 4956372 5094049 5675652 5833309 6764229 7017867 7434558 8513478 9018972 9357156 9617077 10188098 11151837 11666618 12770217 13528458 14035734 14869116 15282147 15855181 17026956 17499927 19234154 20292687 20376196 21053601 22303674 23333236 25540434 27056916 28071468 28851231 30564294 31710362 33455511 34999854 38310651 38468308 40585374 42107202 44607348 45846441 47565543 51080868 52499781 57702462 61128588 63160803 63420724 66911022 69999708 76621302 81170748 84214404 86553693 91692882 95131086 104999562 115404924 126321606 133822044 137539323 142696629 153242604 157499343 173107386 183385764 190262172 209999124 252643212 259661079 275078646 285393258 314998686 346214772 355831849 412617969 428089887 472498029 519322158 550157292 570786516 586641697 629997372 711663698 778983237 825235938 856179774 944996058 1038644316 1067495547 1173283394 1237853907 1284269661 1417494087 1423327396 1557966474 1650471876 1712359548 1759925091 1889992116 2134991094 2336949711 2346566788 2475707814 2568539322 2834988174 3115932948 3202486641 3519850182 3852808983 4269982188 4673899422 4951415628 5137078644 5279775273 5669976348 6404973282 7039700364 7705617966 9347798844 9607459923 10559550546 12809946564 15411235932 15839325819 19214919846 21119101092 21705742789 28822379769 31678651638 38429839692 43411485578 47517977457 57644759538 63357303276 65117228367 86467139307 86822971156 95035954914 115289519076 130234456734 142553932371 172934278614 190071909828 195351685101 260468913468 285107864742 345868557228 390703370202 570215729484 586055055303 781406740404 1172110110606 1758165165909 2344220221212 3516330331818 5274495497727 7032660663636 10548990995454 21097981990908
- Sum of all divisors σ(n): 57802058843256
- Sum of proper divisors (its aliquot sum) s(n): 36704076852348
- 21097981990908 is an abundant number, because the sum of its proper divisors (36704076852348) is greater than itself. Its abundance is 15606094861440
Bases of 21097981990908
- Binary: 1001100110000010000011011100011010111111111002
- Hexadecimal: 0x133041B8D7FC
- Base-36: 7H8A1QRR0
Squares and roots of 21097981990908
- 21097981990908 squared (210979819909082) is 445124844088678295394664464
- 21097981990908 cubed (210979819909083) is 9391235944288665997573050695783358693312
-
The
square root of 21097981990908 is 4593253.9654266887 -
The
cube root of 21097981990908 is 27632.0839133169
Scales and comparisons
How big is 21097981990908?- 21,097,981,990,908 seconds is equal to 670,850 years, 29 weeks, 3 days, 9 hours, 1 minute, 48 seconds.
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To count from 1 to 21,097,981,990,908 would take you about one million, six hundred seventy-seven thousand, one hundred twenty-six 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 21097981990908 cubic inches would be around 2302.7 feet tall.
Recreational maths with 21097981990908
- 21097981990908 backwards is 80909918979012
- The number of decimal digits it has is: 14
- The sum of 21097981990908's digits is 72
- More coming soon!
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