21181289728104

Names of 21181289728104

• Cardinal: 21181289728104 can be written as Twenty-one trillion, one hundred eighty-one billion, two hundred eighty-nine million, seven hundred twenty-eight thousand, one hundred four.

Scientific notation

• Scientific notation: 2.1181289728104 × 10¹³

Factors of 21181289728104

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5160

Divisors of 21181289728104

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 24 27 31 33 36 44 54 62 66 72 88 93 99 108 121 124 132 186 198 216 242 248 264 279 297 341 363 372 396 484 558 594 682 726 744 792 837 968 1023 1089 1116 1188 1364 1452 1674 2046 2178 2232 2376 2728 2904 3069 3267 3348 3751 4092 4356 5113 6138 6534 6696 7502 8184 8712 9207 10226 11253 12276 13068 15004 15339 18414 20452 22506 24552 26136 30008 30678 33759 36828 40904 45012 46017 56243 61356 67518 73656 90024 92034 101277 112486 122712 135036 138051 158503 168729 184068 202554 224972 270072 276102 317006 337458 368136 405108 449944 475509 506187 552204 618673 634012 674916 810216 951018 1012374 1104408 1237346 1268024 1349832 1426527 1518561 1743533 1856019 1902036 2024748 2474692 2853054 3037122 3487066 3712038 3804072 4049496 4279581 4949384 5230599 5568057 5706108 6074244 6974132 7424076 8559162 10461198 11136114 11412216 12148488 13948264 14848152 15691797 16704171 17118324 19178863 20922396 22272228 26142769 31383594 33408342 34236648 38357726 41844792 44544456 47075391 52285538 57536589 62767188 66816684 76715452 78428307 94150782 104571076 115073178 125534376 133633368 153430904 156856614 172609767 188301564 209142152 230146356 235284921 287570459 313713228 345219534 376603128 460292712 470569842 517829301 575140918 627426456 690439068 705854763 810425839 862711377 941139684 1035658602 1150281836 1380878136 1411709526 1620851678 1725422754 1882279368 2071317204 2300563672 2431277517 2588134131 2823419052 3163275049 3241703356 3450845508 4142634408 4862555034 5176268262 5646838104 6326550098 6483406712 6901691016 7293832551 7764402393 8914684229 9489825147 9725110068 10352536524 12653100196 14587665102 15528804786 17829368458 18979650294 19450220136 20705073048 21881497653 25306200392 26744052687 28469475441 29175330204 31057609572 35658736916 37959300588 43762995306 53488105374 56938950882 58350660408 62115219144 71317473832 75918601176 80232158061 85408426323 87525990612 98061526519 106976210748 113877901764 160464316122 170816852646 175051981224 196123053038 213952421496 227755803528 240696474183 294184579557 320928632244 341633705292 392246106076 481392948366 588369159114 641857264488 683267410584 784492212152 882553738671 962785896732 1176738318228 1765107477342 1925571793464 2353476636456 2647661216013 3530214954684 5295322432026 7060429909368 10590644864052 21181289728104
• Sum of all divisors σ(n): 66771234028800
• Sum of proper divisors (its aliquot sum) s(n): 45589944300696
• 21181289728104 is an abundant number, because the sum of its proper divisors (45589944300696) is greater than itself. Its abundance is 24408654572592

Bases of 21181289728104

• Binary: 100110100001110100111010000000000100001101000₂
• Hexadecimal: 0x1343A7400868
• Base-36: 7IAJT0P60

Squares and roots of 21181289728104

• 21181289728104 squared (21181289728104²) is 448647034545884022247434816
• 21181289728104 cubed (21181289728104³) is 9502922824371053676701686480804103268864
• The square root of 21181289728104 is 4602313.5191014529
• The cube root of 21181289728104 is 27668.4056044595

Scales and comparisons

• 21,181,289,728,104 seconds is equal to 673,499 years, 25 weeks, 5 days, 7 hours, 8 minutes, 24 seconds.
• To count from 1 to 21,181,289,728,104 would take you about one million, six hundred eighty-three thousand, seven hundred forty-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 21181289728104 cubic inches would be around 2305.7 feet tall.

Recreational maths with 21181289728104

• 21181289728104 backwards is 40182798218112
• 21181289728104 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21181289728104's digits is 54
• More coming soon!