72157231328

Names of 72157231328

• Cardinal: 72157231328 can be written as Seventy-two billion, one hundred fifty-seven million, two hundred thirty-one thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2157231328 × 10¹⁰

Factors of 72157231328

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 16796

Divisors of 72157231328

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 364 416 728 1456 1637 2912 3274 6548 11459 13096 15137 21281 22918 26192 30274 42562 45836 52384 60548 85124 91672 105959 121096 148967 170248 183344 196781 211918 242192 297934 340496 366688 393562 423836 484384 595868 680992 787124 847672 1191736 1377467 1574248 1695344 2383472 2754934 3148496 3390688 4766944 5509868 6296992 11019736 22039472 24779269 44078944 49558538 99117076 173454883 198234152 322130497 346909766 396468304 644260994 693819532 792936608 1288521988 1387639064 2254913479 2577043976 2775278128 4509826958 5154087952 5550556256 9019653916 10308175904 18039307832 36078615664 72157231328
• Sum of all divisors σ(n): 174960886464
• Sum of proper divisors (its aliquot sum) s(n): 102803655136
• 72157231328 is an abundant number, because the sum of its proper divisors (102803655136) is greater than itself. Its abundance is 30646423808

Bases of 72157231328

• Binary: 1000011001100111001111111100011100000₂
• Hexadecimal: 0x10CCE7F8E0
• Base-36: X5CJW0W

Squares and roots of 72157231328

• 72157231328 squared (72157231328²) is 5206666032922504643584
• 72157231328 cubed (72157231328³) is 375698605385229231464244878999552
• The square root of 72157231328 is 268620.9808038083
• The cube root of 72157231328 is 4163.1937253625

Scales and comparisons

• 72,157,231,328 seconds is equal to 2,294 years, 19 weeks, 4 days, 3 hours, 22 minutes, 8 seconds.
• To count from 1 to 72,157,231,328 would take you about four thousand, five hundred eighty-eight 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 72157231328 cubic inches would be around 346.9 feet tall.

Recreational maths with 72157231328

• 72157231328 backwards is 82313275127
• The number of decimal digits it has is: 11
• The sum of 72157231328's digits is 41
• More coming soon!