640400348585926186384

Names of 640400348585926186384

• Cardinal: 640400348585926186384 can be written as Six hundred forty quintillion, four hundred quadrillion, three hundred forty-eight trillion, five hundred eighty-five billion, nine hundred twenty-six million, one hundred eighty-six thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 6.40400348585926186384 × 10²⁰

Factors of 640400348585926186384

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 39295269

Divisors of 640400348585926186384

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 4 7 8 14 16 23 28 46 49 56 92 98 112 161 184 196 322 368 392 529 644 784 1058 1127 1288 2116 2254 2576 3703 4232 4508 7406 8464 9016 14812 18032 25921 29624 51842 59248 103684 207368 414736 39295237 78590474 157180948 275066659 314361896 550133318 628723792 903790451 1100266636 1807580902 1925466613 2200533272 3615161804 3850933226 4401066544 6326533157 7230323608 7701866452 12653066314 14460647216 15403732904 20787180373 25306132628 30807465808 41574360746 44285732099 50612265256 83148721492 88571464198 101224530512 145510262611 166297442984 177142928396 291020525222 332594885968 354285856792 582041050444 708571713584 1018571838277 1164082100888 2037143676554 2328164201776 4074287353108 8148574706216 16297149412432 1544115650886169 3088231301772338 6176462603544676 10808809556203183 12352925207089352 21617619112406366 24705850414178704 35514659970381887 43235238224812732 71029319940763774 75661666893422281 86470476449625464 142058639881527548 151323333786844562 172940952899250928 248602619792673209 284117279763055096 302646667573689124 497205239585346418 568234559526110192 605293335147378248 816837179318783401 994410479170692836 1210586670294756496 1633674358637566802 1740218338548712463 1988820958341385672 3267348717275133604 3480436677097424926 3977641916682771344 5717860255231483807 6534697434550267208 6960873354194849852 11435720510462967614 13069394869100534416 13921746708389699704 22871441020925935228 27843493416779399408 40025021786620386649 45742882041851870456 80050043573240773298 91485764083703740912 160100087146481546596 320200174292963093192 640400348585926186384
• Sum of all divisors σ(n): 1508834190776452031457
• Sum of proper divisors (its aliquot sum) s(n): 868433842190525845073
• 640400348585926186384 is an abundant number, because the sum of its proper divisors (868433842190525845073) is greater than itself. Its abundance is 228033493604599658689

Bases of 640400348585926186384

• Binary: 1000101011011101010111000101000000110101101100011101011101010110010000₂
• Hexadecimal: 0x22B757140D6C75D590
• Base-36: 3R5GM9ENXZQBV4

Squares and roots of 640400348585926186384

• 640400348585926186384 squared (640400348585926186384²) is 410112606468975771668562419154497906995456
• 640400348585926186384 cubed (640400348585926186384³) is 262636256142214850876485055990516656084017929164845449697071104
• 640400348585926186384 is a perfect square number. Its square root is 25306132628
• The cube root of 640400348585926186384 is 8619535.3124084121

Scales and comparisons

• 640,400,348,585,926,186,384 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 640,400,348,585,926,186,384 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 640400348585926186384 cubic inches would be around 718294.6 feet tall.

Recreational maths with 640400348585926186384

• 640400348585926186384 backwards is 483681629585843004046
• The number of decimal digits it has is: 21
• The sum of 640400348585926186384's digits is 94
• More coming soon!