21315125000

Names of 21315125000

• Cardinal: 21315125000 can be written as Twenty-one billion, three hundred fifteen million, one hundred twenty-five thousand.

Scientific notation

• Scientific notation: 2.1315125 × 10¹⁰

Factors of 21315125000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1029

Divisors of 21315125000

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 169 200 250 260 325 338 500 520 625 650 676 845 1000 1009 1250 1300 1352 1625 1690 2018 2500 2600 3125 3250 3380 4036 4225 5000 5045 6250 6500 6760 8072 8125 8450 10090 12500 13000 13117 15625 16250 16900 20180 21125 25000 25225 26234 31250 32500 33800 40360 40625 42250 50450 52468 62500 65000 65585 81250 84500 100900 104936 105625 125000 126125 131170 162500 169000 170521 201800 203125 211250 252250 262340 325000 327925 341042 406250 422500 504500 524680 528125 630625 655850 682084 812500 845000 852605 1009000 1056250 1261250 1311700 1364168 1625000 1639625 1705210 2112500 2522500 2623400 2640625 3153125 3279250 3410420 4225000 4263025 5045000 5281250 6306250 6558500 6820840 8198125 8526050 10562500 12612500 13117000 15765625 16396250 17052100 21125000 21315125 25225000 31531250 32792500 34104200 40990625 42630250 63062500 65585000 81981250 85260500 106575625 126125000 163962500 170521000 204953125 213151250 327925000 409906250 426302500 532878125 819812500 852605000 1065756250 1639625000 2131512500 2664390625 4263025000 5328781250 10657562500 21315125000
• Sum of all divisors σ(n): 54148720950
• Sum of proper divisors (its aliquot sum) s(n): 32833595950
• 21315125000 is an abundant number, because the sum of its proper divisors (32833595950) is greater than itself. Its abundance is 11518470950

Bases of 21315125000

• Binary: 10011110110011110101111111100001000₂
• Hexadecimal: 0x4F67AFF08
• Base-36: 9SIH3PK

Squares and roots of 21315125000

• 21315125000 squared (21315125000²) is 454334553765625000000
• 21315125000 cubed (21315125000³) is 9684197805333517578125000000000
• The square root of 21315125000 is 145997.0033939053
• The cube root of 21315125000 is 2772.6558132293

Scales and comparisons

• 21,315,125,000 seconds is equal to 677 years, 39 weeks, 1 day, 20 hours, 3 minutes, 20 seconds.
• To count from 1 to 21,315,125,000 would take you about one thousand, three hundred fifty-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 21315125000 cubic inches would be around 231.1 feet tall.

Recreational maths with 21315125000

• 21315125000 backwards is 00052151312
• 21315125000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21315125000's digits is 20
• More coming soon!