21490631580

Names of 21490631580

• Cardinal: 21490631580 can be written as Twenty-one billion, four hundred ninety million, six hundred thirty-one thousand, five hundred eighty.

Scientific notation

• Scientific notation: 2.149063158 × 10¹⁰

Factors of 21490631580

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1145

Divisors of 21490631580

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 31 33 44 55 60 62 66 93 110 124 132 155 165 186 220 310 330 341 372 465 620 660 682 930 961 1023 1093 1364 1705 1860 1922 2046 2186 2883 3279 3410 3844 4092 4372 4805 5115 5465 5766 6558 6820 9610 10230 10571 10930 11532 12023 13116 14415 16395 19220 20460 21142 21860 24046 28830 29791 31713 32790 33883 36069 42284 48092 52855 57660 59582 60115 63426 65580 67766 72138 89373 101649 105710 119164 120230 126852 135532 144276 148955 158565 169415 178746 180345 203298 211420 240460 297910 317130 327701 338830 357492 360690 372713 406596 446865 508245 595820 634260 655402 677660 721380 745426 893730 983103 1016490 1050373 1118139 1310804 1490852 1638505 1787460 1863565 1966206 2032980 2100746 2236278 3151119 3277010 3727130 3932412 4201492 4472556 4915515 5251865 5590695 6302238 6554020 7454260 9831030 10503730 11181390 11554103 12604476 15755595 19662060 21007460 22362780 23108206 31511190 32561563 34662309 46216412 57770515 63022380 65123126 69324618 97684689 115541030 130246252 138649236 162807815 173311545 195369378 231082060 325615630 346623090 358177193 390738756 488423445 651231260 693246180 716354386 976846890 1074531579 1432708772 1790885965 1953693780 2149063158 3581771930 4298126316 5372657895 7163543860 10745315790 21490631580
• Sum of all divisors σ(n): 67894235136
• Sum of proper divisors (its aliquot sum) s(n): 46403603556
• 21490631580 is an abundant number, because the sum of its proper divisors (46403603556) is greater than itself. Its abundance is 24912971976

Bases of 21490631580

• Binary: 10100000000111100010000001110011100₂
• Hexadecimal: 0x500F1039C
• Base-36: 9VEYTGC

Squares and roots of 21490631580

• 21490631580 squared (21490631580²) is 461847245707293296400
• 21490631580 cubed (21490631580³) is 9925389003733176751936140312000
• The square root of 21490631580 is 146596.8334582981
• The cube root of 21490631580 is 2780.2449441715

Scales and comparisons

• 21,490,631,580 seconds is equal to 683 years, 17 weeks, 3 days, 3 hours, 53 minutes.
• To count from 1 to 21,490,631,580 would take you about one thousand, three hundred sixty-six 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 21490631580 cubic inches would be around 231.7 feet tall.

Recreational maths with 21490631580

• 21490631580 backwards is 08513609412
• The number of decimal digits it has is: 11
• The sum of 21490631580's digits is 39
• More coming soon!