21649276949391

Names of 21649276949391

• Cardinal: 21649276949391 can be written as Twenty-one trillion, six hundred forty-nine billion, two hundred seventy-six million, nine hundred forty-nine thousand, three hundred ninety-one.

Scientific notation

• Scientific notation: 2.1649276949391 × 10¹³

Factors of 21649276949391

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 31122

Divisors of 21649276949391

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 9 13 21 31 39 49 63 91 93 117 127 147 217 273 279 381 403 441 637 651 819 889 961 1143 1209 1519 1651 1911 1953 2667 2821 2883 3627 3937 4557 4953 5733 6223 6727 8001 8463 8649 11557 11811 12493 13671 14859 18669 19747 20181 25389 27559 30941 34671 35433 37479 47089 51181 56007 59241 60543 80899 82677 87451 92823 104013 112437 122047 141267 153543 177723 192913 216587 242697 248031 262353 278469 358267 366141 402233 423801 460629 578739 612157 649761 728091 787059 854329 959171 1074801 1098423 1206699 1516109 1586611 1736217 1836471 1949283 2507869 2562987 2815631 2877513 3224403 3620097 3929507 4548327 4759833 5509413 5980303 6714197 7523607 7688961 8446893 8632539 11106277 11788521 12469223 13644981 14279499 17940909 19709417 20142591 22570821 25340679 27506549 29734301 33318831 35365563 37407669 46999379 51083591 53822727 59128251 60427773 77743939 82519647 87284561 89202903 99956493 112223007 121814717 140998137 153250773 177384753 192545843 208140107 233231817 247558941 261853683 267608709 357585137 365444151 386545913 422994411 459752319 577637529 610991927 624420321 699695451 785561049 852703019 1072755411 1096332453 1159637739 1456980749 1583591321 1732912587 1832975781 1873260963 2503095959 2558109057 2705821391 3218266233 3478913217 3776256227 4370942247 4750773963 5498927343 5968921133 7509287877 7674327171 8117464173 11085139247 11328768681 13112826741 14252321889 17906763399 18940749737 22527863631 24352392519 26433793589 33255417741 33986306043 49091330951 53720290197 56822249211 77595974729 79301380767 99766253223 147273992853 170466747633 185036555123 232787924187 237904142301 343639316657 441821978559 555109665369 698363772561 1030917949971 1665328996107 2405475216599 3092753849913 7216425649797 21649276949391
• Sum of all divisors σ(n): 40799406316032
• Sum of proper divisors (its aliquot sum) s(n): 19150129366641
• 21649276949391 is a deficient number, because the sum of its proper divisors (19150129366641) is less than itself. Its deficiency is 2499147582750

Bases of 21649276949391

• Binary: 100111011000010011101011101100101001110001111₂
• Hexadecimal: 0x13B09D76538F
• Base-36: 7O9JGJ05R

Squares and roots of 21649276949391

• 21649276949391 squared (21649276949391²) is 468691192431432483175270881
• 21649276949391 cubed (21649276949391³) is 10146825428688392777296912311785752983471
• The square root of 21649276949391 is 4652878.3510200435
• The cube root of 21649276949391 is 27870.6950041061

Scales and comparisons

• 21,649,276,949,391 seconds is equal to 688,380 years, 2 weeks, 1 day, 1 hour, 29 minutes, 51 seconds.
• To count from 1 to 21,649,276,949,391 would take you about one million, seven hundred twenty thousand, nine hundred fifty 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 21649276949391 cubic inches would be around 2322.6 feet tall.

Recreational maths with 21649276949391

• 21649276949391 backwards is 19394967294612
• The number of decimal digits it has is: 14
• The sum of 21649276949391's digits is 72
• More coming soon!