19999386720

Names of 19999386720

• Cardinal: 19999386720 can be written as Nineteen billion, nine hundred ninety-nine million, three hundred eighty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.999938672 × 10¹⁰

Factors of 19999386720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2627

Divisors of 19999386720

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 45 48 60 72 80 82 90 96 120 123 139 144 160 164 180 205 240 246 278 288 328 360 369 410 417 480 492 556 615 656 695 720 738 820 834 984 1112 1230 1251 1312 1390 1440 1476 1640 1668 1845 1968 2085 2224 2437 2460 2502 2780 2952 3280 3336 3690 3936 4170 4448 4874 4920 5004 5560 5699 5904 6255 6560 6672 7311 7380 8340 9748 9840 10008 11120 11398 11808 12185 12510 13344 14622 14760 16680 17097 19496 19680 20016 21933 22240 22796 24370 25020 28495 29244 29520 33360 34194 36555 38992 40032 43866 45592 48740 50040 51291 56990 58488 59040 66720 68388 73110 77984 85485 87732 91184 97480 99917 100080 102582 109665 113980 116976 136776 146220 170970 175464 182368 194960 199834 200160 205164 219330 227960 233952 256455 273552 292440 299751 338743 341940 350928 389920 399668 410328 438660 455920 499585 512910 547104 584880 599502 677486 683880 701856 799336 820656 877320 899253 911840 999170 1016229 1025820 1169760 1199004 1354972 1367760 1498755 1598672 1641312 1693715 1754640 1798506 1998340 2032458 2051640 2398008 2709944 2735520 2997510 3048687 3197344 3387430 3509280 3597012 3996680 4064916 4103280 4496265 4796016 5081145 5419888 5995020 6097374 6774860 7194024 7993360 8129832 8206560 8992530 9592032 10162290 10839776 11990040 12194748 13549720 13888463 14388048 15243435 15986720 16259664 17985060 20324580 23980080 24389496 27099440 27776926 28776096 30486870 32519328 35970120 40649160 41665389 47960160 48778992 54198880 55553852 60973740 69442315 71940240 81298320 83330778 97557984 111107704 121947480 124996167 138884630 143880480 162596640 166661556 208326945 222215408 243894960 249992334 277769260 333323112 416653890 444430816 487789920 499984668 555538520 624980835 666646224 833307780 999969336 1111077040 1249961670 1333292448 1666615560 1999938672 2222154080 2499923340 3333231120 3999877344 4999846680 6666462240 9999693360 19999386720
• Sum of all divisors σ(n): 70444352160
• Sum of proper divisors (its aliquot sum) s(n): 50444965440
• 19999386720 is an abundant number, because the sum of its proper divisors (50444965440) is greater than itself. Its abundance is 30445578720

Bases of 19999386720

• Binary: 10010101000000011100110110001100000₂
• Hexadecimal: 0x4A80E6C60
• Base-36: 96R49K0

Squares and roots of 19999386720

• 19999386720 squared (19999386720²) is 399975469176112358400
• 19999386720 cubed (19999386720³) is 7999264086566510841812840448000
• The square root of 19999386720 is 141419.1879484535
• The cube root of 19999386720 is 2714.3898713441

Scales and comparisons

• 19,999,386,720 seconds is equal to 635 years, 47 weeks, 5 days, 9 hours, 12 minutes.
• To count from 1 to 19,999,386,720 would take you about one thousand, two hundred seventy-one 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 19999386720 cubic inches would be around 226.2 feet tall.

Recreational maths with 19999386720

• 19999386720 backwards is 02768399991
• The number of decimal digits it has is: 11
• The sum of 19999386720's digits is 63
• More coming soon!