1991156720294144

Names of 1991156720294144

• Cardinal: 1991156720294144 can be written as One quadrillion, nine hundred ninety-one trillion, one hundred fifty-six billion, seven hundred twenty million, two hundred ninety-four thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 1.991156720294144 × 10¹⁵

Factors of 1991156720294144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 873

Divisors of 1991156720294144

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 128 169 208 256 338 349 416 509 676 698 832 1018 1352 1396 1664 2036 2704 2792 3328 4072 4537 5408 5584 6617 8144 9074 10816 11168 13234 16288 18148 21632 22336 26468 32576 36296 43264 44672 52936 58981 65152 72592 86021 89344 105872 117962 130304 145184 172042 177641 211744 235924 259081 290368 344084 355282 423488 471848 518162 580736 688168 710564 846976 943696 1036324 1161472 1376336 1421128 1693952 1887392 2072648 2309333 2752672 2842256 3368053 3774784 4145296 4618666 5505344 5684512 6736106 7549568 8290592 9237332 11010688 11369024 13472212 15099136 16581184 18474664 22021376 22738048 26944424 30021329 33162368 36949328 43784689 45476096 53888848 60042658 66324736 73898656 87569378 90419269 107777696 120085316 131872229 147797312 175138756 180838538 215555392 240170632 263744458 295594624 350277512 361677076 431110784 480341264 527488916 591189248 700555024 723354152 862221568 960682528 1054977832 1175450497 1401110048 1446708304 1714338977 1921365056 2109955664 2350900994 2802220096 2893416608 3428677954 3842730112 4219911328 4701801988 5604440192 5786833216 6857355908 7685460224 8439822656 9403603976 11208880384 11573666432 13714711816 15280856461 16879645312 18807207952 22286406701 23147332864 27429423632 30561712922 33759290624 37614415904 44572813402 46023407921 54858847264 61123425844 75228831808 89145626804 92046815842 109717694528 122246851688 150457663616 178291253608 184093631684 219435389056 244493703376 300915327232 356582507216 368187263368 438870778112 488987406752 598304302973 713165014432 736374526736 977974813504 1196608605946 1426330028864 1472749053472 1955949627008 2393217211892 2852660057728 2945498106944 3911899254016 4786434423784 5705320115456 5890996213888 7777955938649 9572868847568 11781992427776 15555911877298 19145737695136 31111823754596 38291475390272 62223647509192 76582950780544 124447295018384 153165901561088 248894590036768 497789180073536 995578360147072 1991156720294144
• Sum of all divisors σ(n): 4324615009281000
• Sum of proper divisors (its aliquot sum) s(n): 2333458288986856
• 1991156720294144 is an abundant number, because the sum of its proper divisors (2333458288986856) is greater than itself. Its abundance is 342301568692712

Bases of 1991156720294144

• Binary: 111000100101111001001001101000000010101100100000000₂
• Hexadecimal: 0x712F24D015900
• Base-36: JLT0RP4BNK

Squares and roots of 1991156720294144

• 1991156720294144 squared (1991156720294144²) is 3964705084772532004581880692736
• 1991156720294144 cubed (1991156720294144³) is 7894349173529190984793614185535274300404137984
• The square root of 1991156720294144 is 44622379.1420195793
• The cube root of 1991156720294144 is 125806.1333822147

Scales and comparisons

• 1,991,156,720,294,144 seconds is equal to 63,312,624 years, 33 weeks, 6 days, 18 hours, 35 minutes, 44 seconds.
• To count from 1 to 1,991,156,720,294,144 would take you about one hundred eighty-nine million, nine hundred thirty-seven thousand, eight hundred seventy-three 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 1991156720294144 cubic inches would be around 10483.8 feet tall.

Recreational maths with 1991156720294144

• 1991156720294144 backwards is 4414920276511991
• The number of decimal digits it has is: 16
• The sum of 1991156720294144's digits is 65
• More coming soon!