198368818221

Names of 198368818221

• Cardinal: 198368818221 can be written as One hundred ninety-eight billion, three hundred sixty-eight million, eight hundred eighteen thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.98368818221 × 10¹¹

Factors of 198368818221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 129

Divisors of 198368818221

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 17 21 23 49 51 69 79 119 147 161 237 343 357 391 483 553 833 1029 1127 1173 1343 1659 1817 2499 2737 3381 3871 4029 5451 5831 6241 7889 8211 9401 11613 12719 17493 18723 19159 23667 27097 28203 30889 38157 43687 57477 65807 81291 89033 92667 106097 131061 134113 143543 197421 216223 267099 305809 318291 402339 430629 460649 493039 623231 648669 742679 917427 1004801 1381947 1479117 1513561 1869693 2140663 2228037 2440231 3014403 3451273 4540683 5198753 6421989 7033607 7320693 8381663 10353819 10594927 11339897 15596259 17081617 21100821 24158911 25144989 31784781 34019691 36391271 49235249 51244851 58671641 72476733 79379279 109173813 119571319 147705747 169112377 176014923 192778249 238137837 358713957 410701487 507337131 555654953 578334747 836999233 1232104461 1349447743 1666964859 2510997699 2874910409 3889584671 4048343229 8624731227 9446134201 11668754013 28338402603 66122939407 198368818221
• Sum of all divisors σ(n): 345157632000
• Sum of proper divisors (its aliquot sum) s(n): 146788813779
• 198368818221 is a deficient number, because the sum of its proper divisors (146788813779) is less than itself. Its deficiency is 51580004442

Bases of 198368818221

• Binary: 10111000101111101100111111010000101101₂
• Hexadecimal: 0x2E2FB3F42D
• Base-36: 2J4NO7QL

Squares and roots of 198368818221

• 198368818221 squared (198368818221²) is 39350188042396141604841
• 198368818221 cubed (198368818221³) is 7805850298744248055282479542607861
• The square root of 198368818221 is 445386.1450707687
• The cube root of 198368818221 is 5832.0933752569

Scales and comparisons

• 198,368,818,221 seconds is equal to 6,307 years, 26 weeks, 5 days, 9 hours, 30 minutes, 21 seconds.
• To count from 1 to 198,368,818,221 would take you about twelve thousand, six hundred fifteen 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 198368818221 cubic inches would be around 486 feet tall.

Recreational maths with 198368818221

• 198368818221 backwards is 122818863891
• The number of decimal digits it has is: 12
• The sum of 198368818221's digits is 57
• More coming soon!