21318502040

Names of 21318502040

• Cardinal: 21318502040 can be written as Twenty-one billion, three hundred eighteen million, five hundred two thousand and forty.

Scientific notation

• Scientific notation: 2.131850204 × 10¹⁰

Factors of 21318502040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 557

Divisors of 21318502040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 29 40 44 55 58 61 88 110 116 122 145 220 232 244 290 305 319 440 449 488 580 610 638 671 898 1160 1220 1276 1342 1595 1769 1796 2245 2440 2552 2684 3190 3355 3538 3592 3721 4490 4939 5368 6380 6710 7076 7442 8845 8980 9878 12760 13021 13420 14152 14884 17690 17960 18605 19459 19756 24695 26042 26840 27389 29768 35380 37210 38918 39512 40931 49390 52084 54778 65105 70760 74420 77836 81862 97295 98780 104168 107909 109556 130210 136945 143231 148840 155672 163724 194590 197560 204655 215818 219112 260420 273890 286462 301279 327448 389180 409310 431636 520840 539545 547780 572924 602558 716155 778360 794281 818620 863272 1079090 1095560 1145848 1186999 1205116 1432310 1506395 1588562 1637240 1670729 2158180 2373998 2410232 2864620 3012790 3177124 3341458 3971405 4316360 4747996 5729240 5934995 6025580 6354248 6682916 7942810 8353645 8737091 9495992 11869990 12051160 13365832 15885620 16707290 17474182 18378019 23739980 31771240 33414580 34948364 36756038 43685455 47479960 48451141 66829160 69896728 73512076 87370910 91890095 96902282 147024152 174741820 183780190 193804564 242255705 349483640 367560380 387609128 484511410 532962551 735120760 969022820 1065925102 1938045640 2131850204 2664812755 4263700408 5329625510 10659251020 21318502040
• Sum of all divisors σ(n): 55156140000
• Sum of proper divisors (its aliquot sum) s(n): 33837637960
• 21318502040 is an abundant number, because the sum of its proper divisors (33837637960) is greater than itself. Its abundance is 12519135920

Bases of 21318502040

• Binary: 10011110110101011101000011010011000₂
• Hexadecimal: 0x4F6AE8698
• Base-36: 9SKHHG8

Squares and roots of 21318502040

• 21318502040 squared (21318502040²) is 454478529229484161600
• 21318502040 cubed (21318502040³) is 9688801452514957727217289664000
• The square root of 21318502040 is 146008.5683787085
• The cube root of 21318502040 is 2772.8022331249

Scales and comparisons

• 21,318,502,040 seconds is equal to 677 years, 44 weeks, 5 days, 22 hours, 7 minutes, 20 seconds.
• To count from 1 to 21,318,502,040 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 21318502040 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318502040

• 21318502040 backwards is 04020581312
• The number of decimal digits it has is: 11
• The sum of 21318502040's digits is 26
• More coming soon!