20987649738054120

Names of 20987649738054120

• Cardinal: 20987649738054120 can be written as Twenty quadrillion, nine hundred eighty-seven trillion, six hundred forty-nine billion, seven hundred thirty-eight million, fifty-four thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.098764973805412 × 10¹⁶

Factors of 20987649738054120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 27272272201

Divisors of 20987649738054120

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 53 55 60 66 88 106 110 120 121 132 159 165 212 220 242 264 265 318 330 363 424 440 484 530 583 605 636 660 726 795 968 1060 1166 1210 1272 1320 1452 1590 1749 1815 2120 2332 2420 2904 2915 3180 3498 3630 4664 4840 5830 6360 6413 6996 7260 8745 11660 12826 13992 14520 17490 19239 23320 25652 32065 34980 38478 51304 64130 69960 76956 96195 128260 153912 192390 256520 384780 769560 27272272127 54544544254 81816816381 109089088508 136361360635 163633632762 218178177016 272722721270 299994993397 327267265524 409084081905 545445442540 599989986794 654534531048 818168163810 899984980191 1090890885080 1199979973588 1445430422731 1499974966985 1636336327620 1799969960382 2399959947176 2890860845462 2999949933970 3272672655240 3299944927367 3599939920764 4336291268193 4499924900955 5781721690924 5999899867940 6599889854734 7199879841528 7227152113655 8672582536386 8999849801910 9899834782101 11563443381848 11999799735880 13199779709468 14454304227310 15899734650041 16499724636835 17345165072772 17999699603820 19799669564202 21681456340965 26399559418936 28908608454620 31799469300082 32999449273670 34690330145544 35999399207640 39599339128404 43362912681930 47699203950123 49499173910505 57817216909240 63598938600164 65998898547340 79198678256808 79498673250205 86725825363860 95398407900246 98998347821010 127197877200328 131997797094680 158997346500410 173451650727720 174897081150451 190796815800492 197996695642020 238496019750615 317994693000820 349794162300902 381593631600984 395993391284040 476992039501230 524691243451353 635989386001640 699588324601804 874485405752255 953984079002460 1049382486902706 1399176649203608 1748970811504510 1907968158004920 2098764973805412 2623456217256765 3497941623009020 4197529947610824 5246912434513530 6995883246018040 10493824869027060 20987649738054120
• Sum of all divisors σ(n): 70513005032386560
• Sum of proper divisors (its aliquot sum) s(n): 49525355294332440
• 20987649738054120 is an abundant number, because the sum of its proper divisors (49525355294332440) is greater than itself. Its abundance is 28537705556278320

Bases of 20987649738054120

• Binary: 1001010100100000010011111111111010011101001100111101000₂
• Hexadecimal: 0x4A9027FF4E99E8
• Base-36: 5QNI16OZ9BC

Squares and roots of 20987649738054120

• 20987649738054120 squared (20987649738054120²) is 440481441527243171851644048974400
• 20987649738054120 cubed (20987649738054120³) is 9244670210886946331189900599787436304637694528000
• The square root of 20987649738054120 is 144871148.7427849453
• The cube root of 20987649738054120 is 275838.3222126085

Scales and comparisons

• 20,987,649,738,054,120 seconds is equal to 667,342,342 years, 31 weeks, 3 days, 23 hours, 2 minutes.
• To count from 1 to 20,987,649,738,054,120 would take you about two billion, two million, twenty-seven thousand and twenty-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 20987649738054120 cubic inches would be around 22986.5 feet tall.

Recreational maths with 20987649738054120

• 20987649738054120 backwards is 02145083794678902
• The number of decimal digits it has is: 17
• The sum of 20987649738054120's digits is 75
• More coming soon!