1645363609915440

Names of 1645363609915440

• Cardinal: 1645363609915440 can be written as One quadrillion, six hundred forty-five trillion, three hundred sixty-three billion, six hundred nine million, nine hundred fifteen thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.64536360991544 × 10¹⁵

Factors of 1645363609915440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 88010921

Divisors of 1645363609915440

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 61 80 120 122 183 240 244 305 366 488 610 732 915 976 1220 1277 1464 1830 2440 2554 2928 3660 3831 4880 5108 6385 7320 7662 10216 12770 14640 15324 19155 20432 25540 30648 38310 51080 61296 76620 77897 102160 153240 155794 233691 306480 311588 389485 467382 623176 778970 934764 1168455 1246352 1557940 1869528 2336910 3115880 3739056 4673820 6231760 9347640 18695280 88009573 176019146 264028719 352038292 440047865 528057438 704076584 880095730 1056114876 1320143595 1408153168 1760191460 2112229752 2640287190 3520382920 4224459504 5280574380 5368583953 7040765840 10561148760 10737167906 16105751859 21122297520 21474335812 26842919765 32211503718 42948671624 53685839530 64423007436 80528759295 85897343248 107371679060 112388224721 128846014872 161057518590 214743358120 224776449442 257692029744 322115037180 337164674163 429486716240 449552898884 561941123605 644230074360 674329348326 899105797768 1123882247210 1288460148720 1348658696652 1685823370815 1798211595536 2247764494420 2697317393304 3371646741630 4495528988840 5394634786608 6743293483260 6855681707981 8991057977680 13486586966520 13711363415962 20567045123943 26973173933040 27422726831924 34278408539905 41134090247886 54845453663848 68556817079810 82268180495772 102835225619715 109690907327696 137113634159620 164536360991544 205670451239430 274227268319240 329072721983088 411340902478860 548454536638480 822681804957720 1645363609915440
• Sum of all divisors σ(n): 5188303794465216
• Sum of proper divisors (its aliquot sum) s(n): 3542940184549776
• 1645363609915440 is an abundant number, because the sum of its proper divisors (3542940184549776) is greater than itself. Its abundance is 1897576574634336

Bases of 1645363609915440

• Binary: 101110110000111001100010001011111101101000000110000₂
• Hexadecimal: 0x5D873117ED030
• Base-36: G78DLVBB5C

Squares and roots of 1645363609915440

• 1645363609915440 squared (1645363609915440²) is 2707221408833968206283950393600
• 1645363609915440 cubed (1645363609915440³) is 4454363590079421176185584953151246050717184000
• The square root of 1645363609915440 is 40563081.8591911233
• The cube root of 1645363609915440 is 118055.7911486853

Scales and comparisons

• 1,645,363,609,915,440 seconds is equal to 52,317,473 years, 18 weeks, 1 day, 22 hours, 44 minutes.
• To count from 1 to 1,645,363,609,915,440 would take you about one hundred fifty-six million, nine hundred fifty-two thousand, four hundred twenty 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 1645363609915440 cubic inches would be around 9838 feet tall.

Recreational maths with 1645363609915440

• 1645363609915440 backwards is 0445199063635461
• The number of decimal digits it has is: 16
• The sum of 1645363609915440's digits is 66
• More coming soon!