21312820881772

Names of 21312820881772

• Cardinal: 21312820881772 can be written as Twenty-one trillion, three hundred twelve billion, eight hundred twenty million, eight hundred eighty-one thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.1312820881772 × 10¹³

Factors of 21312820881772

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5734

Divisors of 21312820881772

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 14 23 28 46 89 92 161 178 181 322 356 362 409 623 644 724 818 1246 1267 1636 2047 2492 2534 2863 4094 4163 5023 5068 5726 8188 8326 9407 10046 11452 14329 16109 16652 18814 20092 28658 29141 32218 35161 36401 37628 57316 58282 64436 65849 70322 72802 74029 112763 115529 116564 131698 140644 145604 148058 225526 231058 254807 263396 296116 370507 447047 451052 462116 509614 518203 741014 808703 837223 894094 909163 1019228 1036406 1482028 1617406 1674446 1702667 1788188 1818326 2054407 2072812 2593549 3129329 3234812 3348892 3405334 3636652 4108814 5187098 5860561 6258658 6364141 6588581 6810668 8217628 10282081 10374196 11721122 11918669 12517316 12728282 13177162 14380849 20564162 20910749 23442244 23837338 25456564 26354324 28761698 41128324 41821498 46120067 47251361 47674676 57523396 71974567 80915507 83642996 92240134 94502722 143949134 146375243 151537363 161831014 182842223 184480268 189005444 287898268 292750486 303074726 323662028 330759527 365684446 371847667 566408549 585500972 606149452 661519054 731368892 743695334 1060761541 1132817098 1279895561 1323038108 1487390668 1861056661 2121523082 2265634196 2559791122 2602933669 3722113322 4205371129 4243046164 5119582244 5205867338 7444226644 8410742258 8552496341 10411734676 13027396627 16821484516 17104992682 26054793254 29437597903 33094442363 34209985364 52109586508 58875195806 59867474387 66188884726 117750391612 119734948774 132377769452 231661096541 239469897548 463322193082 761172174349 926644386164 1522344348698 3044688697396 5328205220443 10656410440886 21312820881772
• Sum of all divisors σ(n): 45346800844800
• Sum of proper divisors (its aliquot sum) s(n): 24033979963028
• 21312820881772 is an abundant number, because the sum of its proper divisors (24033979963028) is greater than itself. Its abundance is 2721159081256

Bases of 21312820881772

• Binary: 100110110001001000111000111100010100101101100₂
• Hexadecimal: 0x1362471E296C
• Base-36: 7JYZ39SVG

Squares and roots of 21312820881772

• 21312820881772 squared (21312820881772²) is 454236333938496611601859984
• 21312820881772 cubed (21312820881772³) is 9681057623223950003296387709590161811648
• The square root of 21312820881772 is 4616581.0814684063
• The cube root of 21312820881772 is 27725.5590362657

Scales and comparisons

• 21,312,820,881,772 seconds is equal to 677,681 years, 40 weeks, 3 days, 14 hours, 42 minutes, 52 seconds.
• To count from 1 to 21,312,820,881,772 would take you about one million, six hundred ninety-four thousand, two hundred four 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 21312820881772 cubic inches would be around 2310.5 feet tall.

Recreational maths with 21312820881772

• 21312820881772 backwards is 27718802821312
• The number of decimal digits it has is: 14
• The sum of 21312820881772's digits is 52
• More coming soon!