72129970684917728408

Names of 72129970684917728408

• Cardinal: 72129970684917728408 can be written as Seventy-two quintillion, one hundred twenty-nine quadrillion, nine hundred seventy trillion, six hundred eighty-four billion, nine hundred seventeen million, seven hundred twenty-eight thousand, four hundred eight.

Scientific notation

• Scientific notation: 7.2129970684917728408 × 10¹⁹

Factors of 72129970684917728408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 180827627517236

Divisors of 72129970684917728408

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 7 8 14 17 28 34 56 68 119 136 238 419 476 838 952 1676 2933 3352 5866 7123 11732 14246 23464 28492 49861 56984 99722 199444 398888 180827627516791 361655255033582 723310510067164 1265793392617537 1446621020134328 2531586785235074 3074069667785447 5063173570470148 6148139335570894 10126347140940296 12296278671141788 21518487674498129 24592557342283576 43036975348996258 75766775929535429 86073950697992516 151533551859070858 172147901395985032 303067103718141716 530367431506748003 606134207436283432 1060734863013496006 1288035190802102293 2121469726026992012 2576070381604204586 4242939452053984024 5152140763208409172 9016246335614716051 10304281526416818344 18032492671229432102 36064985342458864204 72129970684917728408
• Sum of all divisors σ(n): 164046823683233702400
• Sum of proper divisors (its aliquot sum) s(n): 91916852998315973992
• 72129970684917728408 is an abundant number, because the sum of its proper divisors (91916852998315973992) is greater than itself. Its abundance is 19786882313398245584

Bases of 72129970684917728408

• Binary: 111110100100000001001000100010110101001101110111000100010010011000₂
• Hexadecimal: 0x3E901222D4DDC4498
• Base-36: F80CKNG7TJDLK

Squares and roots of 72129970684917728408

• 72129970684917728408 squared (72129970684917728408²) is 5202732671007090874186670207574850214464
• 72129970684917728408 cubed (72129970684917728408³) is 375272955041205177082621379680628801849398129601534505293312
• The square root of 72129970684917728408 is 8492936517.1840139221
• The cube root of 72129970684917728408 is 4162669.3813649499

Scales and comparisons

• 72,129,970,684,917,728,408 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 72,129,970,684,917,728,408 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 72129970684917728408 cubic inches would be around 346889.1 feet tall.

Recreational maths with 72129970684917728408

• 72129970684917728408 backwards is 80482771948607992127
• The number of decimal digits it has is: 20
• The sum of 72129970684917728408's digits is 101
• More coming soon!