21420923202

Names of 21420923202

• Cardinal: 21420923202 can be written as Twenty-one billion, four hundred twenty million, nine hundred twenty-three thousand, two hundred two.

Scientific notation

• Scientific notation: 2.1420923202 × 10¹⁰

Factors of 21420923202

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1087

Divisors of 21420923202

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 7 9 14 17 18 21 27 34 42 49 51 54 63 81 98 102 119 126 147 153 162 181 189 238 294 306 357 362 378 441 459 543 567 714 833 877 882 918 1071 1086 1134 1267 1323 1377 1629 1666 1754 2142 2499 2534 2631 2646 2754 3077 3213 3258 3801 3969 4887 4998 5262 6139 6154 6426 7497 7602 7893 7938 8869 9231 9639 9774 11403 12278 14661 14909 14994 15786 17738 18417 18462 19278 21539 22491 22806 23679 26607 27693 29322 29818 34209 36834 42973 43078 44727 44982 47358 53214 55251 55386 64617 67473 68418 71037 79821 83079 85946 89454 102627 104363 110502 128919 129234 134181 134946 142074 150773 158737 159642 165753 166158 193851 205254 208726 239463 249237 257838 268362 301546 313089 317474 331506 386757 387702 402543 452319 476211 478926 497259 498474 581553 626178 718389 730541 773514 805086 904638 939267 952422 994518 1111159 1160271 1163106 1207629 1356957 1428633 1436778 1461082 1744659 1878534 2191623 2222318 2320542 2415258 2698529 2713914 2817801 2857266 3333477 3480813 3489318 4070871 4285899 4383246 5397058 5635602 6574869 6666954 6961626 7778113 8095587 8141742 8453403 8571798 10000431 12212613 12857697 13149738 15556226 16191174 16906806 18889703 19724607 20000862 23334339 24286761 24425226 25715394 30001293 37779406 39449214 46668678 48573522 56669109 59173821 60002586 70003017 72860283 90003879 113338218 118347642 132227921 140006034 145720566 170007327 180007758 210009051 218580849 264455842 340014654 396683763 420018102 437161698 510021981 630027153 793367526 1020043962 1190051289 1260054306 1530065943 2380102578 3060131886 3570153867 7140307734 10710461601 21420923202
• Sum of all divisors σ(n): 59514102648
• Sum of proper divisors (its aliquot sum) s(n): 38093179446
• 21420923202 is an abundant number, because the sum of its proper divisors (38093179446) is greater than itself. Its abundance is 16672256244

Bases of 21420923202

• Binary: 10011111100110010010101100101000010₂
• Hexadecimal: 0x4FCC95942
• Base-36: 9U9GQ4I

Squares and roots of 21420923202

• 21420923202 squared (21420923202²) is 458855950825981932804
• 21420923202 cubed (21420923202³) is 9829118083424047448834008518408
• The square root of 21420923202 is 146358.8849438257
• The cube root of 21420923202 is 2777.2356283717

Scales and comparisons

• 21,420,923,202 seconds is equal to 681 years, 6 weeks, 1 day, 8 hours, 26 minutes, 42 seconds.
• To count from 1 to 21,420,923,202 would take you about one thousand, three hundred sixty-two 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 21420923202 cubic inches would be around 231.4 feet tall.

Recreational maths with 21420923202

• 21420923202 backwards is 20232902412
• 21420923202 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21420923202's digits is 27
• More coming soon!