2121787381158816

Names of 2121787381158816

• Cardinal: 2121787381158816 can be written as Two quadrillion, one hundred twenty-one trillion, seven hundred eighty-seven billion, three hundred eighty-one million, one hundred fifty-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.121787381158816 × 10¹⁵

Factors of 2121787381158816

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 124428

Divisors of 2121787381158816

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 71 84 96 112 142 168 213 224 284 331 336 426 497 568 662 672 852 993 994 1093 1136 1324 1491 1704 1986 1988 2186 2272 2317 2648 2982 3279 3408 3972 3976 4372 4634 5296 5964 6558 6816 6951 7651 7944 7952 8744 9268 10592 11928 13116 13902 15302 15888 15904 17488 18536 22953 23501 23856 26232 27804 30604 31776 34976 37072 45906 47002 47712 52464 55608 61208 70503 74144 77603 91812 94004 104928 111216 122416 122921 141006 155206 164507 183624 188008 222432 232809 244832 245842 282012 310412 329014 361783 367248 368763 376016 465618 491684 493521 543221 564024 620824 658028 723566 734496 737526 752032 860447 931236 983368 987042 1085349 1086442 1128048 1241648 1316056 1447132 1475052 1629663 1720894 1862472 1966736 1974084 2170698 2172884 2256096 2483296 2532481 2581341 2632112 2894264 2950104 3259326 3441788 3724944 3933472 3948168 4341396 4345768 5064962 5162682 5264224 5788528 5900208 6518652 6883576 7449888 7597443 7896336 8682792 8691536 8727391 10129924 10325364 11577056 11800416 13037304 13767152 15194886 15792672 17365584 17383072 17454782 20259848 20650728 25686593 26074608 26182173 27534304 30389772 34731168 34909564 40519696 40686851 41301456 51373186 52149216 52364346 60779544 61091737 69819128 77059779 81039392 81373702 82602912 102746372 104728692 121559088 122060553 122183474 134352653 139638256 154119558 162747404 179806151 183275211 205492744 209457384 243118176 244121106 244366948 268705306 279276512 284807957 308239116 325494808 359612302 366550422 403057959 410985488 418914768 488242212 488733896 537410612 539418453 569615914 616478232 650989616 719224604 733100844 806115918 821970976 837829536 854423871 940468571 976484424 977467792 1074821224 1078836906 1139231828 1232956464 1301979232 1438449208 1466201688 1612231836 1708847742 1880937142 1952968848 1954935584 2149642448 2157673812 2278463656 2465912928 2821405713 2876898416 2888766421 2932403376 3224463672 3417695484 3761874284 3905937696 4299284896 4315347624 4556927312 5642811426 5753796832 5777532842 5864806752 6448927344 6835390968 7523748568 8630695248 8666299263 9113854624 9539038363 11285622852 11555065684 12897854688 13670781936 15047497136 17261390496 17332598526 19078076726 20221364947 22571245704 23110131368 27341563872 28617115089 30094994272 34665197052 38156153452 40442729894 44470728143 45142491408 46220262736 57234230178 60664094841 66773268541 69330394104 76312306904 80885459788 88941456286 90284982816 92440525472 114468460356 121328189682 133412184429 133546537082 138660788208 152624613808 161770919576 177882912572 200319805623 228936920712 242656379364 266824368858 267093074164 277321576416 305249227616 311295097001 323541839152 355765825144 400639611246 457873841424 485312758728 533648737716 534186148328 622590194002 647083678304 711531650288 801279222492 915747682848 933885291003 970625517456 1067297475432 1068372296656 1245180388004 1423063300576 1602558444984 1867770582006 1941251034912 2134594950864 2136744593312 2490360776008 3157421698153 3205116889968 3735541164012 4269189901728 4980721552016 6314843396306 6410233779936 7471082328024 9472265094459 9961443104032 12629686792612 14942164656048 18944530188918 22101951887071 25259373585224 29884329312096 37889060377836 44203903774142 50518747170448 66305855661213 75778120755672 88407807548284 101037494340896 132611711322426 151556241511344 176815615096568 265223422644852 303112483022688 353631230193136 530446845289704 707262460386272 1060893690579408 2121787381158816
• Sum of all divisors σ(n): 6480493028093952
• Sum of proper divisors (its aliquot sum) s(n): 4358705646935136
• 2121787381158816 is an abundant number, because the sum of its proper divisors (4358705646935136) is greater than itself. Its abundance is 2236918265776320

Bases of 2121787381158816

• Binary: 111100010011100000100011111001001001001001110100000₂
• Hexadecimal: 0x789C11F2493A0
• Base-36: KW3ZNZTCIO

Squares and roots of 2121787381158816

• 2121787381158816 squared (2121787381158816²) is 4501981690844786730427014521856
• 2121787381158816 cubed (2121787381158816³) is 9552247941842498438469493803357306237439082496
• The square root of 2121787381158816 is 46062863.3625702429
• The cube root of 2121787381158816 is 128499.2582465889

Scales and comparisons

• 2,121,787,381,158,816 seconds is equal to 67,466,275 years, 31 weeks, 1 day, 23 hours, 13 minutes, 36 seconds.
• To count from 1 to 2,121,787,381,158,816 would take you about two hundred two million, three hundred ninety-eight thousand, eight hundred twenty-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 2121787381158816 cubic inches would be around 10708.3 feet tall.

Recreational maths with 2121787381158816

• 2121787381158816 backwards is 6188511837871212
• The number of decimal digits it has is: 16
• The sum of 2121787381158816's digits is 69
• More coming soon!