198643777164

Names of 198643777164

• Cardinal: 198643777164 can be written as One hundred ninety-eight billion, six hundred forty-three million, seven hundred seventy-seven thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 1.98643777164 × 10¹¹

Factors of 198643777164

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37536629

Divisors of 198643777164

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 84 98 108 126 147 189 196 252 294 378 441 588 756 882 1323 1764 2646 5292 37536617 75073234 112609851 150146468 225219702 262756319 337829553 450439404 525512638 675659106 788268957 1013488659 1051025276 1351318212 1576537914 1839294233 2026977318 2364806871 3153075828 3678588466 4053954636 4729613742 5517882699 7094420613 7357176932 9459227484 11035765398 14188841226 16553648097 22071530796 28377682452 33107296194 49660944291 66214592388 99321888582 198643777164
• Sum of all divisors σ(n): 599084423280
• Sum of proper divisors (its aliquot sum) s(n): 400440646116
• 198643777164 is an abundant number, because the sum of its proper divisors (400440646116) is greater than itself. Its abundance is 201796868952

Bases of 198643777164

• Binary: 10111001000000000101110111111010001100₂
• Hexadecimal: 0x2E40177E8C
• Base-36: 2J97DJF0

Squares and roots of 198643777164

• 198643777164 squared (198643777164²) is 39459350205980887882896
• 198643777164 cubed (198643777164³) is 7838354369353104992652860750986944
• The square root of 198643777164 is 445694.7129639301
• The cube root of 198643777164 is 5834.7867520087

Scales and comparisons

• 198,643,777,164 seconds is equal to 6,316 years, 13 weeks, 2 days, 18 hours, 59 minutes, 24 seconds.
• To count from 1 to 198,643,777,164 would take you about twelve thousand, six hundred thirty-two 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 198643777164 cubic inches would be around 486.2 feet tall.

Recreational maths with 198643777164

• 198643777164 backwards is 461777346891
• 198643777164 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 198643777164's digits is 63
• More coming soon!