19919731920

Names of 19919731920

• Cardinal: 19919731920 can be written as Nineteen billion, nine hundred nineteen million, seven hundred thirty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.991973192 × 10¹⁰

Factors of 19919731920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2656

Divisors of 19919731920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 41 44 48 55 60 66 73 80 82 88 110 120 123 132 146 164 165 176 205 219 220 240 246 264 292 328 330 365 410 438 440 451 492 528 584 615 656 660 730 803 820 876 880 902 984 1095 1168 1230 1320 1353 1460 1606 1640 1752 1804 1968 2190 2255 2409 2460 2521 2640 2706 2920 2993 3212 3280 3504 3608 4015 4380 4510 4818 4920 5042 5412 5840 5986 6424 6765 7216 7563 8030 8760 8979 9020 9636 9840 10084 10824 11972 12045 12605 12848 13530 14965 15126 16060 17520 17958 18040 19272 20168 21648 23944 24090 25210 27060 27731 29930 30252 32120 32923 35916 36080 37815 38544 40336 44895 47888 48180 50420 54120 55462 59860 60504 64240 65846 71832 75630 83193 89790 96360 98769 100840 103361 108240 110924 119720 121008 131692 138655 143664 151260 164615 166386 179580 184033 192720 197538 201680 206722 221848 239440 263384 277310 302520 310083 329230 332772 359160 368066 395076 413444 415965 443696 493845 516805 526768 552099 554620 605040 620166 658460 665544 718320 736132 790152 826888 831930 920165 987690 1033610 1104198 1109240 1136971 1240332 1316920 1331088 1472264 1550415 1580304 1653776 1663860 1840330 1975380 2024363 2067220 2208396 2218480 2273942 2480664 2633840 2760495 2944528 3100830 3327720 3410913 3680660 3950760 4048726 4134440 4416792 4547884 4961328 5520990 5684855 6073089 6201660 6655440 6821826 7361320 7545353 7901520 8097452 8268880 8833584 9095768 10121815 11041980 11369710 12146178 12403320 13643652 14722640 15090706 16194904 17054565 18191536 20243630 22083960 22636059 22739420 24292356 24806640 27287304 30181412 30365445 32389808 34109130 37726765 40487260 44167920 45272118 45478840 48584712 54574608 60362824 60730890 68218260 75453530 80974520 82998883 90544236 90957680 97169424 113180295 120725648 121461780 136436520 150907060 161949040 165997766 181088472 226360590 242923560 248996649 272873040 301814120 331995532 362176944 414994415 452721180 485847120 497993298 603628240 663991064 829988830 905442360 995986596 1244983245 1327982128 1659977660 1810884720 1991973192 2489966490 3319955320 3983946384 4979932980 6639910640 9959865960 19919731920
• Sum of all divisors σ(n): 69981020928
• Sum of proper divisors (its aliquot sum) s(n): 50061289008
• 19919731920 is an abundant number, because the sum of its proper divisors (50061289008) is greater than itself. Its abundance is 30141557088

Bases of 19919731920

• Binary: 10010100011010011101111110011010000₂
• Hexadecimal: 0x4A34EFCD0
• Base-36: 95FOZIO

Squares and roots of 19919731920

• 19919731920 squared (19919731920²) is 396795719764666886400
• 19919731920 cubed (19919731920³) is 7904064364715609865189093888000
• The square root of 19919731920 is 141137.2804045763
• The cube root of 19919731920 is 2710.7813962005

Scales and comparisons

• 19,919,731,920 seconds is equal to 633 years, 20 weeks, 10 hours, 52 minutes.
• To count from 1 to 19,919,731,920 would take you about one thousand, two 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 19919731920 cubic inches would be around 225.9 feet tall.

Recreational maths with 19919731920

• 19919731920 backwards is 02913791991
• The number of decimal digits it has is: 11
• The sum of 19919731920's digits is 51
• More coming soon!