21111972138816

Names of 21111972138816

• Cardinal: 21111972138816 can be written as Twenty-one trillion, one hundred eleven billion, nine hundred seventy-two million, one hundred thirty-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1111972138816 × 10¹³

Factors of 21111972138816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 524395

Divisors of 21111972138816

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 17 24 26 32 34 39 48 51 52 64 68 73 78 96 102 104 136 146 156 169 192 204 208 219 221 272 292 312 338 408 416 438 442 507 544 584 624 663 676 816 832 876 884 949 1014 1088 1168 1241 1248 1326 1352 1632 1752 1768 1898 2028 2336 2482 2496 2652 2704 2847 2873 3264 3504 3536 3723 3796 4056 4672 4964 5304 5408 5694 5746 7008 7072 7446 7592 8112 8619 9928 10608 10816 11388 11492 12337 14016 14144 14892 15184 16133 16224 17238 19856 21216 22776 22984 24674 29784 30368 32266 32448 34476 37011 39712 42432 45552 45968 48399 49348 59568 60736 64532 68952 74022 79424 91104 91936 96798 98696 119136 129064 137904 148044 182208 183872 193596 197392 209729 238272 258128 275808 296088 387192 394784 419458 516256 524287 551616 592176 629187 774384 789568 838916 1032512 1048574 1184352 1258374 1548768 1572861 1677832 2097148 2368704 2516748 3097536 3145722 3355664 4194296 5033496 6291444 6711328 6815731 8388592 8912879 10066992 12582888 13422656 13631462 16777184 17825758 20133984 20447193 25165776 26738637 27262924 33554368 35651516 38272951 40267968 40894386 50331552 53477274 54525848 71303032 76545902 81788772 88604503 100663104 106954548 109051696 114818853 115867427 142606064 153091804 163577544 177209006 213909096 218103392 229637706 231734854 265813509 285212128 306183608 327155088 347602281 354418012 427818192 436206784 459275412 463469708 497548363 531627018 570424256 612367216 650640167 654310176 695204562 708836024 855636384 918550824 926939416 995096726 1063254036 1224734432 1301280334 1308620352 1390409124 1417672048 1492645089 1506276551 1711272768 1837101648 1853878832 1951920501 1990193452 2126508072 2449468864 2602560668 2780818248 2835344096 2985290178 3012553102 3674203296 3707757664 3903841002 3980386904 4253016144 4518829653 5205121336 5561636496 5670688192 5970580356 6025106204 6468128719 7348406592 7415515328 7807682004 7960773808 8458322171 8506032288 9037659306 10410242672 11123272992 11941160712 12050212408 12936257438 15615364008 15921547616 16916644342 17012064576 18075318612 19404386157 20820485344 22246545984 23882321424 24100424816 25374966513 25872514876 31230728016 31843095232 33833288684 36150637224 38808772314 41640970688 47764642848 48200849632 50749933026 51745029752 62461456032 67666577368 72301274448 77617544628 95529285696 96401699264 101499866052 103490059504 109958188223 124922912064 135333154736 144602548896 155235089256 202999732104 206980119008 219916376446 270666309472 289205097792 310470178512 329874564669 405999464208 413960238016 439832752892 541332618944 620940357024 659749129338 811998928416 879665505784 1241880714048 1319498258676 1623997856832 1759331011568 2638996517352 3518662023136 5277993034704 7037324046272 10555986069408 21111972138816
• Sum of all divisors σ(n): 64921559629824
• Sum of proper divisors (its aliquot sum) s(n): 43809587491008
• 21111972138816 is an abundant number, because the sum of its proper divisors (43809587491008) is greater than itself. Its abundance is 22697615352192

Bases of 21111972138816

• Binary: 100110011001110000011100110011000111101000000₂
• Hexadecimal: 0x133383998F40
• Base-36: 7HEPF46YO

Squares and roots of 21111972138816

• 21111972138816 squared (21111972138816²) is 445715367590143029573881856
• 21111972138816 cubed (21111972138816³) is 9409930422405231583752260468508015722496
• The square root of 21111972138816 is 4594776.6146806311
• The cube root of 21111972138816 is 27638.1902086287

Scales and comparisons

• 21,111,972,138,816 seconds is equal to 671,295 years, 21 weeks, 2 days, 9 hours, 13 minutes, 36 seconds.
• To count from 1 to 21,111,972,138,816 would take you about one million, six hundred seventy-eight thousand, two hundred thirty-eight 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 21111972138816 cubic inches would be around 2303.2 feet tall.

Recreational maths with 21111972138816

• 21111972138816 backwards is 61883127911112
• 21111972138816 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21111972138816's digits is 51
• More coming soon!