809019900

Names of 809019900

• Cardinal: 809019900 can be written as Eight hundred nine million, nineteen thousand, nine hundred.

Scientific notation

• Scientific notation: 8.090199 × 10⁸

Factors of 809019900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 220

Divisors of 809019900

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 25 26 27 30 36 39 45 50 52 54 60 65 75 78 81 90 100 108 117 130 135 150 156 162 169 180 195 197 225 234 243 260 270 300 324 325 338 351 390 394 405 450 468 486 507 540 585 591 650 675 676 702 780 788 810 845 900 972 975 985 1014 1053 1170 1182 1215 1300 1350 1404 1521 1620 1690 1755 1773 1950 1970 2025 2028 2106 2340 2364 2430 2535 2561 2700 2925 2955 3042 3159 3380 3510 3546 3900 3940 4050 4212 4225 4563 4860 4925 5070 5122 5265 5319 5850 5910 6075 6084 6318 7020 7092 7605 7683 8100 8450 8775 8865 9126 9850 10140 10244 10530 10638 11700 11820 12150 12636 12675 12805 13689 14775 15210 15366 15795 15957 16900 17550 17730 18252 19700 21060 21276 22815 23049 24300 25350 25610 26325 26595 27378 29550 30420 30732 31590 31914 33293 35100 35460 38025 38415 41067 44325 45630 46098 47871 50700 51220 52650 53190 54756 59100 63180 63828 64025 66586 68445 69147 76050 76830 78975 79785 82134 88650 91260 92196 95742 99879 105300 106380 114075 115245 128050 132975 133172 136890 138294 152100 153660 157950 159570 164268 166465 177300 191484 192075 199758 205335 207441 228150 230490 239355 256100 265950 273780 276588 299637 315900 319140 332930 342225 345735 384150 398925 399516 410670 414882 456300 460980 478710 499395 531900 576225 599274 622323 665860 684450 691470 768300 797850 821340 829764 832325 898911 957420 998790 1026675 1037205 1152450 1196775 1198548 1244646 1368900 1382940 1498185 1595700 1664650 1728675 1797822 1997580 2053350 2074410 2304900 2393550 2489292 2496975 2696733 2996370 3111615 3329300 3457350 3595644 4106700 4148820 4494555 4787100 4993950 5186025 5393466 5992740 6223230 6914700 7490925 8090199 8989110 9987900 10372050 10786932 12446460 13483665 14981850 15558075 16180398 17978220 20744100 22472775 26967330 29963700 31116150 32360796 40450995 44945550 53934660 62232300 67418325 80901990 89891100 134836650 161803980 202254975 269673300 404509950 809019900
• Sum of all divisors σ(n): 2862051192
• Sum of proper divisors (its aliquot sum) s(n): 2053031292
• 809019900 is an abundant number, because the sum of its proper divisors (2053031292) is greater than itself. Its abundance is 1244011392

Bases of 809019900

• Binary: 110000001110001010100111111100₂
• Hexadecimal: 0x3038A9FC
• Base-36: DDO3R0

Squares and roots of 809019900

• 809019900 squared (809019900²) is 654513198596010000
• 809019900 cubed (809019900³) is 529514202476824150599000000
• The square root of 809019900 is 28443.2751278751
• The cube root of 809019900 is 931.7936249075

Scales and comparisons

• 809,019,900 seconds is equal to 25 years, 37 weeks, 4 days, 15 hours, 45 minutes.
• To count from 1 to 809,019,900 would take you about thirty-eight 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 809019900 cubic inches would be around 77.6 feet tall.

Recreational maths with 809019900

• 809019900 backwards is 009910908
• 809019900 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 809019900's digits is 36
• More coming soon!