19894000000

Names of 19894000000

• Cardinal: 19894000000 can be written as Nineteen billion, eight hundred ninety-four million.

Scientific notation

• Scientific notation: 1.9894 × 10¹⁰

Factors of 19894000000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 43

Divisors of 19894000000

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 29 32 35 40 49 50 56 58 64 70 80 98 100 112 116 125 128 140 145 160 175 196 200 203 224 232 245 250 280 290 320 343 350 392 400 406 448 464 490 500 560 580 625 640 686 700 725 784 800 812 875 896 928 980 1000 1015 1120 1160 1225 1250 1372 1400 1421 1450 1568 1600 1624 1715 1750 1856 1960 2000 2030 2240 2320 2450 2500 2744 2800 2842 2900 3125 3136 3200 3248 3430 3500 3625 3712 3920 4000 4060 4375 4480 4640 4900 5000 5075 5488 5600 5684 5800 6125 6250 6272 6496 6860 7000 7105 7250 7840 8000 8120 8575 8750 9280 9800 9947 10000 10150 10976 11200 11368 11600 12250 12500 12992 13720 14000 14210 14500 15625 15680 16000 16240 17150 17500 18125 18560 19600 19894 20000 20300 21875 21952 22400 22736 23200 24500 25000 25375 25984 27440 28000 28420 29000 30625 31250 31360 32480 34300 35000 35525 36250 39200 39788 40000 40600 42875 43750 43904 45472 46400 49000 49735 50000 50750 54880 56000 56840 58000 61250 62500 64960 68600 70000 71050 72500 78400 79576 80000 81200 85750 87500 90625 90944 92800 98000 99470 100000 101500 109375 109760 112000 113680 116000 122500 125000 126875 129920 137200 140000 142100 145000 153125 156800 159152 162400 171500 175000 177625 181250 181888 196000 198940 200000 203000 214375 218750 219520 227360 232000 245000 248675 250000 253750 274400 280000 284200 290000 306250 318304 324800 343000 350000 355250 362500 392000 397880 400000 406000 428750 437500 453125 454720 464000 490000 497350 500000 507500 548800 560000 568400 580000 612500 634375 636608 649600 686000 700000 710500 725000 765625 784000 795760 812000 857500 875000 888125 906250 909440 980000 994700 1000000 1015000 1071875 1097600 1136800 1160000 1225000 1243375 1268750 1273216 1372000 1400000 1421000 1450000 1531250 1591520 1624000 1715000 1750000 1776250 1812500 1960000 1989400 2000000 2030000 2143750 2273600 2320000 2450000 2486750 2537500 2744000 2800000 2842000 2900000 3062500 3171875 3183040 3248000 3430000 3500000 3552500 3625000 3920000 3978800 4060000 4287500 4440625 4547200 4900000 4973500 5075000 5359375 5488000 5684000 5800000 6125000 6216875 6343750 6366080 6860000 7000000 7105000 7250000 7957600 8120000 8575000 8881250 9800000 9947000 10150000 10718750 11368000 11600000 12250000 12433750 12687500 13720000 14000000 14210000 14500000 15915200 16240000 17150000 17762500 19600000 19894000 20300000 21437500 22203125 22736000 24500000 24867500 25375000 27440000 28420000 29000000 31084375 31830400 34300000 35525000 39788000 40600000 42875000 44406250 49000000 49735000 50750000 56840000 58000000 62168750 68600000 71050000 79576000 81200000 85750000 88812500 98000000 99470000 101500000 113680000 124337500 137200000 142100000 155421875 159152000 171500000 177625000 198940000 203000000 248675000 284200000 310843750 343000000 355250000 397880000 406000000 497350000 568400000 621687500 686000000 710500000 795760000 994700000 1243375000 1421000000 1989400000 2486750000 2842000000 3978800000 4973500000 9947000000 19894000000
• Sum of all divisors σ(n): 59764860000
• Sum of proper divisors (its aliquot sum) s(n): 39870860000
• 19894000000 is an abundant number, because the sum of its proper divisors (39870860000) is greater than itself. Its abundance is 19976860000

Bases of 19894000000

• Binary: 10010100001110001100101100110000000₂
• Hexadecimal: 0x4A1C65980
• Base-36: 950DGN4

Squares and roots of 19894000000

• 19894000000 squared (19894000000²) is 395771236000000000000
• 19894000000 cubed (19894000000³) is 7873472968984000000000000000000
• The square root of 19894000000 is 141046.0917572691
• The cube root of 19894000000 is 2709.6136484395

Scales and comparisons

• 19,894,000,000 seconds is equal to 632 years, 29 weeks, 3 days, 15 hours, 6 minutes, 40 seconds.
• To count from 1 to 19,894,000,000 would take you about one thousand, two hundred sixty-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 19894000000 cubic inches would be around 225.8 feet tall.

Recreational maths with 19894000000

• 19894000000 backwards is 00000049891
• The number of decimal digits it has is: 11
• The sum of 19894000000's digits is 31
• More coming soon!