72420857028

Names of 72420857028

• Cardinal: 72420857028 can be written as Seventy-two billion, four hundred twenty million, eight hundred fifty-seven thousand and twenty-eight.

Scientific notation

• Scientific notation: 7.2420857028 × 10¹⁰

Factors of 72420857028

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1778730

Divisors of 72420857028

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 29 36 39 52 54 58 78 87 108 116 117 156 174 234 261 348 351 377 468 522 702 754 783 1044 1131 1404 1508 1566 2262 3132 3393 4524 6786 10179 13572 20358 40716 1778683 3557366 5336049 7114732 10672098 16008147 21344196 23122879 32016294 46245758 48024441 51581807 64032588 69368637 92491516 96048882 103163614 138737274 154745421 192097764 206327228 208105911 277474548 309490842 416211822 464236263 618981684 624317733 670563491 832423644 928472526 1248635466 1341126982 1392708789 1856945052 2011690473 2497270932 2682253964 2785417578 4023380946 5570835156 6035071419 8046761892 12070142838 18105214257 24140285676 36210428514 72420857028
• Sum of all divisors σ(n): 209173238400
• Sum of proper divisors (its aliquot sum) s(n): 136752381372
• 72420857028 is an abundant number, because the sum of its proper divisors (136752381372) is greater than itself. Its abundance is 64331524344

Bases of 72420857028

• Binary: 1000011011100100111101001010011000100₂
• Hexadecimal: 0x10DC9E94C4
• Base-36: X9PIAX0

Squares and roots of 72420857028

• 72420857028 squared (72420857028²) is 5244780532670016992784
• 72420857028 cubed (72420857028³) is 379831501099732983736740571685952
• The square root of 72420857028 is 269111.2354176243
• The cube root of 72420857028 is 4168.2576251627

Scales and comparisons

• 72,420,857,028 seconds is equal to 2,302 years, 39 weeks, 3 days, 8 hours, 43 minutes, 48 seconds.
• To count from 1 to 72,420,857,028 would take you about four thousand, six hundred five 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 72420857028 cubic inches would be around 347.4 feet tall.

Recreational maths with 72420857028

• 72420857028 backwards is 82075802427
• The number of decimal digits it has is: 11
• The sum of 72420857028's digits is 45
• More coming soon!