21290666718321

Names of 21290666718321

• Cardinal: 21290666718321 can be written as Twenty-one trillion, two hundred ninety billion, six hundred sixty-six million, seven hundred eighteen thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 2.1290666718321 × 10¹³

Factors of 21290666718321

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1773001

Divisors of 21290666718321

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 11 13 21 31 33 39 43 63 77 91 93 99 117 129 143 217 231 273 279 301 341 387 403 429 473 559 651 693 819 903 1001 1023 1209 1287 1333 1419 1677 1953 2387 2709 2821 3003 3069 3311 3627 3913 3999 4257 4433 5031 6149 7161 8463 9009 9331 9933 11739 11997 13299 14663 17329 18447 21483 25389 27993 29799 31031 35217 39897 43043 43989 51987 55341 83979 93093 102641 121303 129129 131967 155961 190619 279279 307923 363909 387387 571857 923769 1091727 1334333 1715571 1772893 4002999 5318679 12008997 12410251 15956037 19501823 23047609 37230753 54959683 58505469 69142827 76234399 111692259 136512761 161333263 164879049 175516407 207428481 228703197 253523699 384717781 409538283 483999789 494637147 533640793 604556513 686109591 714475879 760571097 838578389 991047187 1154153343 1228614849 1451999367 1600922379 1774665893 1813669539 2143427637 2281713291 2363266369 2515735167 2973141561 3462460029 4231895591 4802767137 5001331153 5323997679 5441008617 5870048723 6430282911 6937330309 7089799107 7547205501 7859234669 8919424683 10901519057 12695686773 15003993459 15971993037 16542864583 17610146169 20811990927 21269397321 23577704007 25995930059 30722462797 32704557171 38087060319 45011980377 49628593749 52830438507 55014642683 62435972781 70733112021 76310633399 77987790177 92167388391 98113671513 148885781247 165043928049 181971510413 215057239579 228931900197 233963370531 276502165173 337947090767 495131784147 545914531239 645171718737 686795700591 1013841272301 1637743593717 1935515156211 2365629635369 3041523816903 7096888906107 21290666718321
• Sum of all divisors σ(n): 43614213586944
• Sum of proper divisors (its aliquot sum) s(n): 22323546868623
• 21290666718321 is an abundant number, because the sum of its proper divisors (22323546868623) is greater than itself. Its abundance is 1032880150302

Bases of 21290666718321

• Binary: 100110101110100011110101000000111010001110001₂
• Hexadecimal: 0x135D1EA07471
• Base-36: 7JOSP96Y9

Squares and roots of 21290666718321

• 21290666718321 squared (21290666718321²) is 453292489310621499557059041
• 21290666718321 cubed (21290666718321³) is 9650899315830526813583438167537513390161
• The square root of 21290666718321 is 4614181.0452474663
• The cube root of 21290666718321 is 27715.9490223201

Scales and comparisons

• 21,290,666,718,321 seconds is equal to 676,977 years, 17 weeks, 6 days, 16 hours, 25 minutes, 21 seconds.
• To count from 1 to 21,290,666,718,321 would take you about one million, six hundred ninety-two thousand, four hundred forty-three 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 21290666718321 cubic inches would be around 2309.7 feet tall.

Recreational maths with 21290666718321

• 21290666718321 backwards is 12381766609212
• The number of decimal digits it has is: 14
• The sum of 21290666718321's digits is 54
• More coming soon!