199978378904278390

Names of 199978378904278390

• Cardinal: 199978378904278390 can be written as One hundred ninety-nine quadrillion, nine hundred seventy-eight trillion, three hundred seventy-eight billion, nine hundred four million, two hundred seventy-eight thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.9997837890427839 × 10¹⁷

Factors of 199978378904278390

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1342193

Divisors of 199978378904278390

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 13 26 65 130 3853 7706 19265 38530 50089 100178 250445 448867 500890 889453 897734 1778906 2244335 4447265 4488670 5835271 8894530 11562889 11670542 23125778 29176355 57814445 58352710 115628890 1729484551 3427062409 3458969102 6854124818 8647422755 17135312045 17294845510 22483299163 34270624090 44551811317 44966598326 89103622634 112416495815 222759056585 224832991630 399246099751 445518113170 798492199502 1996230498755 3992460997510 5190199296763 10380398593526 25950996483815 51901992967630 1538295222340603 3076590444681206 7691476111703015 15382952223406030 19997837890427839 39995675780855678 99989189452139195 199978378904278390
• Sum of all divisors σ(n): 387752305835030976
• Sum of proper divisors (its aliquot sum) s(n): 187773926930752586
• 199978378904278390 is a deficient number, because the sum of its proper divisors (187773926930752586) is less than itself. Its deficiency is 12204451973525804

Bases of 199978378904278390

• Binary: 1011000110011101110100011010101101010110010001010101110110₂
• Hexadecimal: 0x2C67746AD591576
• Base-36: 1IP2F306VFCM

Squares and roots of 199978378904278390

• 199978378904278390 squared (199978378904278390²) is 39991352029183136203022246620992100
• 199978378904278390 cubed (199978378904278390³) is 7997405748986367669706426998001651217427476390719000
• The square root of 199978378904278390 is 447189421.7267201747
• The cube root of 199978378904278390 is 584782.4733940045

Scales and comparisons

• 199,978,378,904,278,390 seconds is equal to 6,358,693,875 years, 21 weeks, 4 days, 8 hours, 53 minutes, 10 seconds.
• To count from 1 to 199,978,378,904,278,390 would take you about nineteen billion, seventy-six million, eighty-one thousand, six hundred twenty-six 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 199978378904278390 cubic inches would be around 48731.9 feet tall.

Recreational maths with 199978378904278390

• 199978378904278390 backwards is 093872409873879991
• The number of decimal digits it has is: 18
• The sum of 199978378904278390's digits is 103
• More coming soon!