4991721816168640

Names of 4991721816168640

• Cardinal: 4991721816168640 can be written as Four quadrillion, nine hundred ninety-one trillion, seven hundred twenty-one billion, eight hundred sixteen million, one hundred sixty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.99172181616864 × 10¹⁵

Factors of 4991721816168640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 37

Divisors of 4991721816168640

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 23 28 32 35 40 46 49 56 64 70 80 92 98 112 115 140 160 161 184 196 224 230 245 280 320 322 343 368 392 448 460 490 560 644 686 736 784 805 920 980 1120 1127 1288 1372 1472 1568 1610 1715 1840 1960 2240 2254 2401 2576 2744 3136 3220 3430 3680 3920 4508 4802 5152 5488 5635 6440 6860 7360 7840 7889 9016 9604 10304 10976 11270 12005 12880 13720 15680 15778 16807 18032 19208 21952 22540 24010 25760 27440 31556 33614 36064 38416 39445 45080 48020 51520 54880 55223 63112 67228 72128 76832 78890 84035 90160 96040 109760 110446 117649 126224 134456 153664 157780 168070 180320 192080 220892 235298 252448 268912 276115 315560 336140 360640 384160 386561 441784 470596 504896 537824 552230 588245 631120 672280 768320 773122 823543 883568 941192 1075648 1104460 1176490 1262240 1344560 1546244 1647086 1767136 1882384 1932805 2208920 2352980 2524480 2689120 2705927 3092488 3294172 3534272 3764768 3865610 4117715 4417840 4705960 5378240 5411854 5764801 6184976 6588344 7529536 7731220 8235430 8835680 9411920 10823708 11529602 12369952 13176688 13529635 15462440 16470860 17671360 18823840 18941489 21647416 23059204 24739904 26353376 27059270 28824005 30924880 32941720 37647680 37882978 40353607 43294832 46118408 52706752 54118540 57648010 61849760 65883440 75765956 80707214 86589664 92236816 94707445 108237080 115296020 123699520 131766880 132590423 151531912 161414428 173179328 184473632 189414890 201768035 216474160 230592040 263533760 265180846 282475249 303063824 322828856 368947264 378829780 403536070 432948320 461184080 530361692 564950498 606127648 645657712 662952115 757659560 807072140 865896640 922368160 928132961 1060723384 1129900996 1212255296 1291315424 1325904230 1412376245 1515319120 1614144280 1844736320 1856265922 1977326743 2121446768 2259801992 2582630848 2651808460 2824752490 3030638240 3228288560 3712531844 3954653486 4242893536 4519603984 4640664805 5303616920 5649504980 6061276480 6456577120 6496930727 7425063688 7909306972 8485787072 9039207968 9281329610 9886633715 10607233840 11299009960 12913154240 12993861454 13841287201 14850127376 15818613944 18078415936 18562659220 19773267430 21214467680 22598019920 25987722908 27682574402 29700254752 31637227888 32484653635 37125318440 39546534860 42428935360 45196039840 45478515089 51975445816 55365148804 59400509504 63274455776 64969307270 69206436005 74250636880 79093069720 90392079680 90957030178 96889010407 103950891632 110730297608 126548911552 129938614540 138412872010 148501273760 158186139440 181914060356 193778020814 207901783264 221460595216 227392575445 259877229080 276825744020 297002547520 316372278880 318349605623 363828120712 387556041628 415803566528 442921190432 454785150890 484445052035 519754458160 553651488040 632744557760 636699211246 678223072849 727656241424 775112083256 885842380864 909570301780 968890104070 1039508916320 1107302976080 1273398422492 1356446145698 1455312482848 1550224166512 1591748028115 1819140603560 1937780208140 2079017832640 2214605952160 2228447239361 2546796844984 2712892291396 2910624965696 3100448333024 3183496056230 3391115364245 3638281207120 3875560416280 4429211904320 4456894478722 5093593689968 5425784582792 6200896666048 6366992112460 6782230728490 7276562414240 7751120832560 8913788957444 10187187379936 10851569165584 11142236196805 12733984224920 13564461456980 14553124828480 15502241665120 15599130675527 17827577914888 20374374759872 21703138331168 22284472393610 25467968449840 27128922913960 31004483330240 31198261351054 35655155829776 43406276662336 44568944787220 50935936899680 54257845827920 62396522702108 71310311659552 77995653377635 89137889574440 101871873799360 108515691655840 124793045404216 142620623319104 155991306755270 178275779148880 217031383311680 249586090808432 311982613510540 356551558297760 499172181616864 623965227021080 713103116595520 998344363233728 1247930454042160 2495860908084320 4991721816168640
• Sum of all divisors σ(n): 14470567482303216
• Sum of proper divisors (its aliquot sum) s(n): 9478845666134576
• 4991721816168640 is an abundant number, because the sum of its proper divisors (9478845666134576) is greater than itself. Its abundance is 4487123849965936

Bases of 4991721816168640

• Binary: 10001101110111111000111001101101010111001100011000000₂
• Hexadecimal: 0x11BBF1CDAB98C0
• Base-36: 1D5F1CEWPTS

Squares and roots of 4991721816168640

• 4991721816168640 squared (4991721816168640²) is 24917286690013945790128919449600
• 4991721816168640 cubed (4991721816168640³) is 124380163570271093772231836487122373449580544000
• The square root of 4991721816168640 is 70652118.2709240501
• The cube root of 4991721816168640 is 170903.1725706913

Scales and comparisons

• 4,991,721,816,168,640 seconds is equal to 158,721,313 years, 17 weeks, 6 days, 12 hours, 10 minutes, 40 seconds.
• To count from 1 to 4,991,721,816,168,640 would take you about four hundred seventy-six million, one hundred sixty-three thousand, nine hundred forty 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 4991721816168640 cubic inches would be around 14241.9 feet tall.

Recreational maths with 4991721816168640

• 4991721816168640 backwards is 0468616181271994
• The number of decimal digits it has is: 16
• The sum of 4991721816168640's digits is 73
• More coming soon!