421721475945

Names of 421721475945

• Cardinal: 421721475945 can be written as Four hundred twenty-one billion, seven hundred twenty-one million, four hundred seventy-five thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 4.21721475945 × 10¹¹

Factors of 421721475945

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 17247

Divisors of 421721475945

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 11 15 19 21 33 35 55 57 77 95 105 133 165 209 231 285 385 399 627 665 1045 1155 1201 1463 1995 3135 3603 4389 6005 7315 8407 13211 16001 18015 21945 22819 25221 39633 42035 48003 66055 68457 80005 92477 112007 114095 126105 159733 176011 198165 240015 251009 277431 304019 336021 342285 462385 479199 528033 560035 753027 798665 880055 912057 1232077 1255045 1387155 1520095 1680105 1757063 2128133 2395995 2640165 3344209 3696231 3765135 4560285 5271189 6160385 6384399 8785315 10032627 10640665 16721045 18481155 19217201 23409463 26355945 31921995 50163135 57651603 70228389 96086005 117047315 134520407 211389211 288258015 351141945 365126819 403561221 634167633 672602035 1056946055 1095380457 1479724477 1825634095 2017806105 2555887733 3170838165 4016395009 4439173431 5476902285 7398622385 7667663199 12049185027 12779438665 20081975045 22195867155 28114765063 38338315995 60245925135 84344295189 140573825315 421721475945
• Sum of all divisors σ(n): 886321336320
• Sum of proper divisors (its aliquot sum) s(n): 464599860375
• 421721475945 is an abundant number, because the sum of its proper divisors (464599860375) is greater than itself. Its abundance is 42878384430

Bases of 421721475945

• Binary: 110001000110000100011110000101101101001₂
• Hexadecimal: 0x62308F0B69
• Base-36: 5DQI2TEX

Squares and roots of 421721475945

• 421721475945 squared (421721475945²) is 177849003273229213643025
• 421721475945 cubed (421721475945³) is 75002744155733360083828233354533625
• The square root of 421721475945 is 649400.8592117815
• The cube root of 421721475945 is 7499.0901174419

Scales and comparisons

• 421,721,475,945 seconds is equal to 13,409 years, 22 weeks, 5 days, 14 hours, 25 minutes, 45 seconds.
• To count from 1 to 421,721,475,945 would take you about twenty-six thousand, eight hundred eighteen 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 421721475945 cubic inches would be around 624.9 feet tall.

Recreational maths with 421721475945

• 421721475945 backwards is 549574127124
• The number of decimal digits it has is: 12
• The sum of 421721475945's digits is 51
• More coming soon!