21318750000

Names of 21318750000

• Cardinal: 21318750000 can be written as Twenty-one billion, three hundred eighteen million, seven hundred fifty thousand.

Scientific notation

• Scientific notation: 2.131875 × 10¹⁰

Factors of 21318750000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 389

Divisors of 21318750000

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 125 144 150 180 200 225 240 250 300 360 375 379 400 450 500 600 625 720 750 758 900 1000 1125 1137 1200 1250 1500 1516 1800 1875 1895 2000 2250 2274 2500 3000 3032 3125 3411 3600 3750 3790 4500 4548 5000 5625 5685 6000 6064 6250 6822 7500 7580 9000 9096 9375 9475 10000 11250 11370 12500 13644 15000 15160 15625 17055 18000 18192 18750 18950 22500 22740 25000 27288 28125 28425 30000 30320 31250 34110 37500 37900 45000 45480 46875 47375 50000 54576 56250 56850 62500 68220 75000 75800 78125 85275 90000 90960 93750 94750 112500 113700 125000 136440 140625 142125 150000 151600 156250 170550 187500 189500 225000 227400 234375 236875 250000 272880 281250 284250 312500 341100 375000 379000 390625 426375 450000 454800 468750 473750 562500 568500 625000 682200 703125 710625 750000 758000 781250 852750 937500 947500 1125000 1137000 1171875 1184375 1250000 1364400 1406250 1421250 1562500 1705500 1875000 1895000 2131875 2250000 2274000 2343750 2368750 2812500 2842500 3125000 3411000 3515625 3553125 3750000 3790000 4263750 4687500 4737500 5625000 5685000 5921875 6250000 6822000 7031250 7106250 8527500 9375000 9475000 10659375 11250000 11370000 11843750 14062500 14212500 17055000 17765625 18750000 18950000 21318750 23687500 28125000 28425000 29609375 34110000 35531250 42637500 47375000 53296875 56250000 56850000 59218750 71062500 85275000 88828125 94750000 106593750 118437500 142125000 148046875 170550000 177656250 213187500 236875000 266484375 284250000 296093750 355312500 426375000 444140625 473750000 532968750 592187500 710625000 852750000 888281250 1065937500 1184375000 1332421875 1421250000 1776562500 2131875000 2368750000 2664843750 3553125000 4263750000 5329687500 7106250000 10659375000 21318750000
• Sum of all divisors σ(n): 74775352340
• Sum of proper divisors (its aliquot sum) s(n): 53456602340
• 21318750000 is an abundant number, because the sum of its proper divisors (53456602340) is greater than itself. Its abundance is 32137852340

Bases of 21318750000

• Binary: 10011110110101100100100111100110000₂
• Hexadecimal: 0x4F6B24F30
• Base-36: 9SKMSS0

Squares and roots of 21318750000

• 21318750000 squared (21318750000²) is 454489101562500000000
• 21318750000 cubed (21318750000³) is 9689139533935546875000000000000
• The square root of 21318750000 is 146009.4175044883
• The cube root of 21318750000 is 2772.8129834327

Scales and comparisons

• 21,318,750,000 seconds is equal to 677 years, 45 weeks, 1 day, 19 hours.
• To count from 1 to 21,318,750,000 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 21318750000 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318750000

• 21318750000 backwards is 00005781312
• The number of decimal digits it has is: 11
• The sum of 21318750000's digits is 27
• More coming soon!