21307636494

Names of 21307636494

• Cardinal: 21307636494 can be written as Twenty-one billion, three hundred seven million, six hundred thirty-six thousand, four hundred ninety-four.

Scientific notation

• Scientific notation: 2.1307636494 × 10¹⁰

Factors of 21307636494

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 163

Divisors of 21307636494

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 17 18 23 27 29 34 46 51 54 58 69 87 89 102 138 153 174 178 207 261 267 289 306 391 414 459 493 522 529 534 578 621 667 782 783 801 867 918 986 1058 1173 1242 1334 1479 1513 1566 1587 1602 1734 2001 2047 2346 2403 2581 2601 2958 3026 3174 3519 4002 4094 4437 4539 4761 4806 5162 5202 6003 6141 6647 7038 7743 7803 8381 8874 8993 9078 9522 10557 11339 12006 12282 13294 13311 13617 14283 15341 15486 15606 16762 17986 18009 18423 19941 21114 22678 23229 25143 25721 26622 26979 27234 28566 30682 34017 34799 36018 36846 39882 40851 43877 46023 46458 47081 50286 51442 53958 55269 59363 59823 68034 69598 69687 75429 77163 80937 81702 87754 92046 94162 102051 104397 110538 118726 119646 131631 138069 139374 141243 150858 152881 154326 161874 178089 179469 192763 204102 208794 226287 231489 242811 260797 263262 276138 282486 305762 306153 313191 356178 358938 385526 394893 414207 423729 452574 458643 462978 485622 521594 534267 578289 591583 612306 626382 694467 745909 782391 789786 800377 828414 847458 917286 939573 1009171 1068534 1156578 1183166 1184679 1271187 1365349 1375929 1388934 1491818 1564782 1600754 1602801 1734867 1774749 1879146 2018342 2237727 2347173 2369358 2401131 2542374 2730698 2751858 3027513 3205602 3469734 3549498 4096047 4127787 4433549 4475454 4694346 4802262 5204601 5324247 6055026 6713181 7041519 7203393 8192094 8255574 8867098 9082539 10409202 10648494 12288141 13300647 13426362 13606409 14083038 14406786 15972741 17155907 18165078 20139543 21610179 23210933 24576282 26601294 27212818 27247617 31945482 34311814 36864423 39901941 40279086 40819227 43220358 46421866 51467721 54495234 69632799 73728846 79803882 81638454 102935442 119705823 122457681 139265598 154403163 208898397 239411646 244915362 308806326 367373043 394585861 417796794 463209489 626695191 734746086 789171722 926418978 1183757583 1253390382 2367515166 3551272749 7102545498 10653818247 21307636494
• Sum of all divisors σ(n): 55005804000
• Sum of proper divisors (its aliquot sum) s(n): 33698167506
• 21307636494 is an abundant number, because the sum of its proper divisors (33698167506) is greater than itself. Its abundance is 12390531012

Bases of 21307636494

• Binary: 10011110110000010001011101100001110₂
• Hexadecimal: 0x4F608BB0E
• Base-36: 9SE0LJI

Squares and roots of 21307636494

• 21307636494 squared (21307636494²) is 454015372960440612036
• 21307636494 cubed (21307636494³) is 9673994529728905203337969241784
• The square root of 21307636494 is 145971.3550461185
• The cube root of 21307636494 is 2772.3310754091

Scales and comparisons

• 21,307,636,494 seconds is equal to 677 years, 26 weeks, 6 days, 3 hours, 54 minutes, 54 seconds.
• To count from 1 to 21,307,636,494 would take you about one thousand, three hundred fifty-five 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 21307636494 cubic inches would be around 231 feet tall.

Recreational maths with 21307636494

• 21307636494 backwards is 49463670312
• The number of decimal digits it has is: 11
• The sum of 21307636494's digits is 45
• More coming soon!