18389705740

Names of 18389705740

• Cardinal: 18389705740 can be written as Eighteen billion, three hundred eighty-nine million, seven hundred five thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.838970574 × 10¹⁰

Factors of 18389705740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 726

Divisors of 18389705740

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 53 67 70 71 106 134 140 142 212 265 268 284 335 355 371 469 497 521 530 670 710 742 938 994 1042 1060 1340 1420 1484 1855 1876 1988 2084 2345 2485 2605 3551 3647 3710 3763 4690 4757 4970 5210 7102 7294 7420 7526 9380 9514 9940 10420 14204 14588 15052 17755 18235 18815 19028 23785 24857 26341 27613 33299 34907 35510 36470 36991 37630 47570 49714 52682 55226 66598 69814 71020 72940 73982 75260 95140 99428 105364 110452 124285 131705 133196 138065 139628 147964 166495 174535 184955 193291 244349 248570 252121 258937 263410 276130 332990 349070 369910 386582 488698 497140 504242 517874 526820 552260 665980 698140 739820 773164 966455 977396 1008484 1035748 1221745 1260605 1294685 1764847 1850071 1932910 1960523 2443490 2478397 2521210 2589370 3529694 3700142 3865820 3921046 4886980 4956794 5042420 5178740 7059388 7400284 7842092 8824235 9250355 9802615 9913588 12391985 12950497 13723661 17348779 17648470 18500710 19605230 24783970 25900994 27447322 34697558 35296940 37001420 39210460 49567940 51801988 54894644 64752485 68618305 69395116 86743895 129504970 131355041 137236610 173487790 259009940 262710082 274473220 346975580 525420164 656775205 919485287 1313550410 1838970574 2627100820 3677941148 4597426435 9194852870 18389705740
• Sum of all divisors σ(n): 46370838528
• Sum of proper divisors (its aliquot sum) s(n): 27981132788
• 18389705740 is an abundant number, because the sum of its proper divisors (27981132788) is greater than itself. Its abundance is 9591427048

Bases of 18389705740

• Binary: 10001001000000111001010010000001100₂
• Hexadecimal: 0x4481CA40C
• Base-36: 8G4R7RG

Squares and roots of 18389705740

• 18389705740 squared (18389705740²) is 338181277203788947600
• 18389705740 cubed (18389705740³) is 6219054174555048759428279224000
• The square root of 18389705740 is 135608.6492079321
• The cube root of 18389705740 is 2639.5198152901

Scales and comparisons

• 18,389,705,740 seconds is equal to 584 years, 38 weeks, 1 day, 19 hours, 35 minutes, 40 seconds.
• To count from 1 to 18,389,705,740 would take you about one thousand, one hundred sixty-nine 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 18389705740 cubic inches would be around 220 feet tall.

Recreational maths with 18389705740

• 18389705740 backwards is 04750798381
• The number of decimal digits it has is: 11
• The sum of 18389705740's digits is 52
• More coming soon!