1997021746720

Names of 1997021746720

• Cardinal: 1997021746720 can be written as One trillion, nine hundred ninety-seven billion, twenty-one million, seven hundred forty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.99702174672 × 10¹²

Factors of 1997021746720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 28880

Divisors of 1997021746720

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 65 70 77 80 88 91 104 110 112 130 140 143 154 160 176 182 208 220 224 260 280 286 308 352 364 385 416 439 440 455 520 560 572 616 715 728 770 878 880 910 1001 1040 1120 1144 1232 1430 1456 1540 1756 1760 1820 2002 2080 2195 2288 2464 2860 2912 3073 3080 3512 3640 4004 4390 4576 4829 5005 5707 5720 6146 6160 7024 7280 8008 8780 9658 10010 11414 11440 12292 12320 14048 14560 15365 16016 17560 19316 20020 22828 22880 24145 24584 28403 28535 30730 32032 33803 35120 38632 39949 40040 45656 48290 49168 56806 57070 61460 62777 67606 70240 77264 79898 80080 91312 96580 98336 113612 114140 122920 125554 135212 142015 154528 159796 160160 169015 182624 193160 198821 199745 227224 228280 245840 251108 270424 284030 312433 313885 319592 338030 369239 386320 397642 399490 439439 454448 456560 491680 502216 540848 568060 624866 627770 639184 676060 738478 772640 795284 798980 878878 908896 913120 994105 1004432 1081696 1136120 1249732 1255540 1278368 1352120 1476956 1562165 1590568 1597960 1757756 1846195 1988210 2008864 2187031 2197195 2272240 2499464 2511080 2584673 2704240 2953912 3124330 3181136 3195920 3515512 3692390 3976420 4061629 4374062 4394390 4544480 4998928 5022160 5169346 5408480 5907824 6248660 6362272 6391840 7031024 7384780 7952840 8123258 8748124 8788780 9997856 10044320 10338692 10935155 11815648 12468917 12497320 12923365 14062048 14769560 15905680 16246516 17496248 17577560 20308145 20677384 21870310 24937834 24994640 25846730 28431403 29539120 31811360 32493032 34992496 35155120 40616290 41354768 43740620 49875668 49989280 51693460 56862806 59078240 62344585 64986064 69984992 70310240 81232580 82709536 87282419 87481240 99751336 103386920 113725612 124689170 129972128 137158087 142157015 162095921 162465160 174564838 174962480 199502672 206773840 227451224 249378340 274316174 284314030 324191842 324930320 349129676 349924960 399005344 413547680 436412095 454902448 498756680 548632348 568628060 648383684 649860640 685790435 698259352 810479605 872824190 909804896 960106609 997513360 1097264696 1134671447 1137256120 1296767368 1371580870 1396518704 1620959210 1745648380 1783055131 1920213218 1995026720 2194529392 2269342894 2274512240 2593534736 2743161740 2793037408 3241918420 3491296760 3566110262 3840426436 4389058784 4538685788 4549024480 4800533045 5187069472 5486323480 5673357235 6483836840 6982593520 7132220524 7680852872 8915275655 9077371576 9601066090 10972646960 11346714470 12481385917 12967673680 13965187040 14264441048 15361705744 17830551310 18154743152 19202132180 21945293920 22693428940 24962771834 25935347360 28528882096 30723411488 35661102620 36309486304 38404264360 45386857880 49925543668 57057764192 62406929585 71322205240 76808528720 90773715760 99851087336 124813859170 142644410480 153617057440 181547431520 199702174672 249627718340 285288820960 399404349344 499255436680 998510873360 1997021746720
• Sum of all divisors σ(n): 6349262008320
• Sum of proper divisors (its aliquot sum) s(n): 4352240261600
• 1997021746720 is an abundant number, because the sum of its proper divisors (4352240261600) is greater than itself. Its abundance is 2355218514880

Bases of 1997021746720

• Binary: 11101000011110111110001011001011000100000₂
• Hexadecimal: 0x1D0F7C59620
• Base-36: PHF36PLS

Squares and roots of 1997021746720

• 1997021746720 squared (1997021746720²) is 3988095856872599830758400
• 1997021746720 cubed (1997021746720³) is 7964314154178514430528716350312448000
• The square root of 1997021746720 is 1413160.1985337685
• The cube root of 1997021746720 is 12592.9534520761

Scales and comparisons

• 1,997,021,746,720 seconds is equal to 63,499 years, 5 weeks, 6 days, 14 hours, 58 minutes, 40 seconds.
• To count from 1 to 1,997,021,746,720 would take you about one hundred fifty-eight thousand, seven hundred forty-seven 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 1997021746720 cubic inches would be around 1049.4 feet tall.

Recreational maths with 1997021746720

• 1997021746720 backwards is 0276471207991
• 1997021746720 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1997021746720's digits is 55
• More coming soon!