21297709838311972

Names of 21297709838311972

• Cardinal: 21297709838311972 can be written as Twenty-one quadrillion, two hundred ninety-seven trillion, seven hundred nine billion, eight hundred thirty-eight million, three hundred eleven thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 2.1297709838311972 × 10¹⁶

Factors of 21297709838311972

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1166

Divisors of 21297709838311972

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 13 26 47 52 94 157 169 188 314 338 611 628 676 947 1222 1894 2041 2197 2209 2444 3788 4082 4394 4418 7379 7943 8164 8788 8836 12311 14758 15886 24622 24649 26533 28717 29516 31772 44509 49244 49298 53066 57434 89018 95927 98596 103259 103823 106132 114868 148679 160043 178036 191854 206518 207646 297358 320086 320437 344929 346813 373321 383708 413036 415292 578617 594716 640172 640874 689858 693626 746642 1157234 1158503 1247051 1281748 1349699 1379716 1387252 1493284 1932827 2080559 2091923 2314468 2317006 2494102 2699398 3865654 4161118 4165681 4183846 4508569 4634012 4853173 4988204 5398796 6987913 7522021 7731308 8322236 8331362 8367692 9017138 9706346 13975826 15044042 15060539 16211663 16300211 16662724 17546087 18034276 19412692 23342603 25126751 27194999 27951652 30088084 30121078 32423326 32600422 35092174 46685206 50253502 54153853 54389998 54449641 58611397 60242156 64846652 65200844 70184348 90842869 93370412 97786273 98320381 100507004 108307706 108779996 108899282 117222794 181685738 195572546 195787007 196640762 211902743 216615412 217798564 228099131 234445588 303453839 326647763 328431911 353534987 363371476 391145092 391574014 393281524 423805486 456198262 606907678 653295526 656863822 707069974 707845333 761948161 783148028 847610972 912396524 1097102341 1180957297 1213815356 1278164953 1306591052 1313727644 1414139948 1415690666 1523896322 2194204682 2361914594 2545231091 2556329906 2559133127 2754735659 2831381332 3047792644 3944899907 4269614843 4388409364 4595954831 4723829188 5090462182 5112659812 5118266254 5509471318 7889799814 8539229686 9191909662 9201989329 10180924364 10236532508 11018942636 14262330433 15352444861 15436299817 15779599628 16616144389 17078459372 18383819324 18403978658 28524660866 30704889722 30872599634 33232288778 33268730651 35811563567 36807957316 51283698791 51563810027 55504992959 57049321732 61409779444 61745199268 66464577556 66537461302 71623127134 102567397582 103127620054 111009985918 119625861277 133074922604 143246254268 185410295629 200671897621 205134795164 206255240108 216009877057 222019971836 239251722554 370820591258 401343795242 432019754114 432493498463 478503445108 670329530351 721564908467 741641182516 802687590484 864039508228 864986996926 1340659060702 1443129816934 1729973993852 2410333843177 2423499071269 2608734669073 2681318121404 2886259633868 4820667686354 4846998142538 5217469338146 5622415480019 8714283894563 9641335372708 9693996285076 10434938676292 11244830960038 17428567789126 22489661920076 31505487926497 33913550697949 34857135578252 63010975852994 67827101395898 113285690629319 126021951705988 135654202791796 226571381258638 409571343044461 453142762517276 819142686088922 1638285372177844 5324427459577993 10648854919155986 21297709838311972
• Sum of all divisors σ(n): 41561488400140800
• Sum of proper divisors (its aliquot sum) s(n): 20263778561828828
• 21297709838311972 is a deficient number, because the sum of its proper divisors (20263778561828828) is less than itself. Its deficiency is 1033931276483144

Bases of 21297709838311972

• Binary: 1001011101010100010011101111101011100010010001000100100₂
• Hexadecimal: 0x4BAA277D712224
• Base-36: 5TPEOTV5P9G

Squares and roots of 21297709838311972

• 21297709838311972 squared (21297709838311972²) is 453592444356930564511258398528784
• 21297709838311972 cubed (21297709838311972³) is 9660480264764575809325241998178314028082813802048
• The square root of 21297709838311972 is 145937349.0176931095
• The cube root of 21297709838311972 is 277190.0490334463

Scales and comparisons

• 21,297,709,838,311,972 seconds is equal to 677,201,294 years, 37 weeks, 1 day, 18 hours, 12 minutes, 52 seconds.
• To count from 1 to 21,297,709,838,311,972 would take you about two billion, thirty-one million, six hundred three thousand, eight hundred eighty-four 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 21297709838311972 cubic inches would be around 23099.2 feet tall.

Recreational maths with 21297709838311972

• 21297709838311972 backwards is 27911383890779212
• The number of decimal digits it has is: 17
• The sum of 21297709838311972's digits is 79
• More coming soon!