9987520140

Names of 9987520140

• Cardinal: 9987520140 can be written as Nine billion, nine hundred eighty-seven million, five hundred twenty thousand, one hundred forty.

Scientific notation

• Scientific notation: 9.98752014 × 10⁹

Factors of 9987520140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4268194

Divisors of 9987520140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 4268171 8536342 12804513 17072684 21340855 25609026 38413539 42681710 51218052 55486223 64022565 76827078 85363420 110972446 128045130 153654156 166458669 192067695 221944892 256090260 277431115 332917338 384135390 499376007 554862230 665834676 768270780 832293345 998752014 1109724460 1664586690 1997504028 2496880035 3329173380 4993760070 9987520140
• Sum of all divisors σ(n): 32625906768
• Sum of proper divisors (its aliquot sum) s(n): 22638386628
• 9987520140 is an abundant number, because the sum of its proper divisors (22638386628) is greater than itself. Its abundance is 12650866488

Bases of 9987520140

• Binary: 1001010011010011010111011010001100₂
• Hexadecimal: 0x2534D768C
• Base-36: 4L6B7V0

Squares and roots of 9987520140

• 9987520140 squared (9987520140²) is 99750558546905619600
• 9987520140 cubed (9987520140³) is 996260712463469010434178744000
• The square root of 9987520140 is 99937.5812194791
• The cube root of 9987520140 is 2153.5380821667

Scales and comparisons

• 9,987,520,140 seconds is equal to 317 years, 29 weeks, 5 days, 7 hours, 9 minutes.
• To count from 1 to 9,987,520,140 would take you about six hundred thirty-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 9987520140 cubic inches would be around 179.5 feet tall.

Recreational maths with 9987520140

• 9987520140 backwards is 0410257899
• 9987520140 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 9987520140's digits is 45
• More coming soon!