72240268905

Names of 72240268905

• Cardinal: 72240268905 can be written as Seventy-two billion, two hundred forty million, two hundred sixty-eight thousand, nine hundred five.

Scientific notation

• Scientific notation: 7.2240268905 × 10¹⁰

Factors of 72240268905

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 19590

Divisors of 72240268905

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 15 21 27 31 35 45 63 93 105 127 135 155 189 217 279 315 381 465 635 651 837 889 945 1085 1143 1395 1905 1953 2667 3255 3429 3937 4185 4445 5715 5859 8001 9765 11811 13335 17145 19417 19685 24003 27559 29295 35433 40005 58251 59055 82677 97085 106299 120015 135919 137795 174753 177165 248031 291255 407757 413385 524259 531495 601927 679595 744093 873765 1223271 1240155 1805781 2038785 2465959 2621295 3009635 3669813 3720465 4213489 5417343 6116355 7397877 9028905 12329795 12640467 16252029 17261713 18349065 21067445 22193631 27086715 36989385 37921401 51785139 63202335 66580893 76444729 81260145 86308565 110968155 113764203 155355417 189607005 229334187 258925695 332904465 382223645 466066251 535113103 568821015 688002561 776777085 1146670935 1605339309 2064007683 2330331255 2675565515 3440012805 4816017927 8026696545 10320038415 14448053781 24080089635 72240268905
• Sum of all divisors σ(n): 152709365760
• Sum of proper divisors (its aliquot sum) s(n): 80469096855
• 72240268905 is an abundant number, because the sum of its proper divisors (80469096855) is greater than itself. Its abundance is 8228827950

Bases of 72240268905

• Binary: 1000011010001110110110000011001101001₂
• Hexadecimal: 0x10D1DB0669
• Base-36: X6PZO89

Squares and roots of 72240268905

• 72240268905 squared (72240268905²) is 5218656451466709899025
• 72240268905 cubed (72240268905³) is 376997145376768204761191397317625
• The square root of 72240268905 is 268775.4990786921
• The cube root of 72240268905 is 4164.7900957161

Scales and comparisons

• 72,240,268,905 seconds is equal to 2,297 years, 6 days, 5 hours, 21 minutes, 45 seconds.
• To count from 1 to 72,240,268,905 would take you about four thousand, five hundred ninety-four 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 72240268905 cubic inches would be around 347.1 feet tall.

Recreational maths with 72240268905

• 72240268905 backwards is 50986204227
• 72240268905 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72240268905's digits is 45
• More coming soon!