71428923918

Names of 71428923918

• Cardinal: 71428923918 can be written as Seventy-one billion, four hundred twenty-eight million, nine hundred twenty-three thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 7.1428923918 × 10¹⁰

Factors of 71428923918

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3572

Divisors of 71428923918

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 22 29 33 58 66 87 99 174 198 261 319 522 638 957 1914 2871 3527 5742 7054 10581 21162 31743 38797 63486 77594 102283 116391 204566 232782 306849 349173 613698 698346 920547 1125113 1841094 2250226 3375339 6750678 10126017 12439729 20252034 24879458 37319187 74638374 111957561 136837019 223915122 273674038 360752141 410511057 721504282 821022114 1082256423 1231533171 2164512846 2463066342 3246769269 3968273551 6493538538 7936547102 11904820653 23809641306 35714461959 71428923918
• Sum of all divisors σ(n): 174703328280
• Sum of proper divisors (its aliquot sum) s(n): 103274404362
• 71428923918 is an abundant number, because the sum of its proper divisors (103274404362) is greater than itself. Its abundance is 31845480444

Bases of 71428923918

• Binary: 1000010100001011111101110001000001110₂
• Hexadecimal: 0x10A17EE20E
• Base-36: WTAXQFI

Squares and roots of 71428923918

• 71428923918 squared (71428923918²) is 5102091172083432470724
• 71428923918 cubed (71428923918³) is 364436882153446943499635358376632
• The square root of 71428923918 is 267261.9013589479
• The cube root of 71428923918 is 4149.1394919385

Scales and comparisons

• 71,428,923,918 seconds is equal to 2,271 years, 11 weeks, 2 days, 15 hours, 45 minutes, 18 seconds.
• To count from 1 to 71,428,923,918 would take you about four thousand, five hundred forty-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 71428923918 cubic inches would be around 345.8 feet tall.

Recreational maths with 71428923918

• 71428923918 backwards is 81932982417
• The number of decimal digits it has is: 11
• The sum of 71428923918's digits is 54
• More coming soon!