1998212803146240

Names of 1998212803146240

• Cardinal: 1998212803146240 can be written as One quadrillion, nine hundred ninety-eight trillion, two hundred twelve billion, eight hundred three million, one hundred forty-six thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.99821280314624 × 10¹⁵

Factors of 1998212803146240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 260183958753

Divisors of 1998212803146240

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 7680 260183958743 520367917486 780551876229 1040735834972 1300919793715 1561103752458 2081471669944 2601839587430 3122207504916 3902759381145 4162943339888 5203679174860 6244415009832 7805518762290 8325886679776 10407358349720 12488830019664 15611037524580 16651773359552 20814716699440 24977660039328 31222075049160 33303546719104 41629433398880 49955320078656 62444150098320 66607093438208 83258866797760 99910640157312 124888300196640 133214186876416 166517733595520 199821280314624 249776600393280 333035467191040 399642560629248 499553200786560 666070934382080 999106401573120 1998212803146240
• Sum of all divisors σ(n): 6388036555082688
• Sum of proper divisors (its aliquot sum) s(n): 4389823751936448
• 1998212803146240 is an abundant number, because the sum of its proper divisors (4389823751936448) is greater than itself. Its abundance is 2391610948790208

Bases of 1998212803146240

• Binary: 111000110010101110100101100010100010011001000000000₂
• Hexadecimal: 0x7195D2C513200
• Base-36: JOB2AEO16O

Squares and roots of 1998212803146240

• 1998212803146240 squared (1998212803146240²) is 3992854406657554089642826137600
• 1998212803146240 cubed (1998212803146240³) is 7978572796482008047018905595324726587162624000
• The square root of 1998212803146240 is 44701373.6158771747
• The cube root of 1998212803146240 is 125954.5650231083

Scales and comparisons

• 1,998,212,803,146,240 seconds is equal to 63,536,986 years, 13 weeks, 4 days, 9 hours, 4 minutes.
• To count from 1 to 1,998,212,803,146,240 would take you about one hundred ninety million, six hundred ten thousand, nine hundred fifty-eight 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 1998212803146240 cubic inches would be around 10496.2 feet tall.

Recreational maths with 1998212803146240

• 1998212803146240 backwards is 0426413082128991
• 1998212803146240 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1998212803146240's digits is 60
• More coming soon!