1221831000

Names of 1221831000

• Cardinal: 1221831000 can be written as One billion, two hundred twenty-one million, eight hundred thirty-one thousand.

Scientific notation

• Scientific notation: 1.221831 × 10⁹

Factors of 1221831000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 82

Divisors of 1221831000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 25 26 27 30 36 39 40 45 50 52 54 59 60 65 72 75 78 90 100 104 108 117 118 120 125 130 135 150 156 177 180 195 200 216 225 234 236 250 260 270 295 300 312 325 351 354 360 375 390 450 468 472 500 520 531 540 585 590 600 650 675 702 708 750 767 780 885 900 936 975 1000 1062 1080 1125 1170 1180 1300 1350 1404 1416 1475 1500 1534 1560 1593 1625 1755 1770 1800 1950 2124 2250 2301 2340 2360 2600 2655 2700 2808 2925 2950 3000 3068 3186 3250 3375 3481 3510 3540 3835 3900 4248 4425 4500 4602 4680 4875 5310 5400 5850 5900 6136 6372 6500 6750 6903 6962 7020 7080 7375 7670 7800 7965 8775 8850 9000 9204 9750 10443 10620 11505 11700 11800 12744 13000 13275 13500 13806 13924 14040 14625 14750 15340 15930 17405 17550 17700 18408 19175 19500 20709 20886 21240 22125 23010 23400 26550 27000 27612 27848 29250 29500 30680 31329 31860 34515 34810 35100 35400 38350 39000 39825 41418 41772 43875 44250 45253 46020 52215 53100 55224 57525 58500 59000 62658 63720 66375 69030 69620 70200 76700 79650 82836 83544 87025 87750 88500 90506 92040 93987 95875 103545 104430 106200 115050 117000 125316 132750 135759 138060 139240 153400 156645 159300 165672 172575 174050 175500 177000 181012 187974 191750 199125 207090 208860 226265 230100 250632 261075 265500 271518 276120 287625 313290 318600 345150 348100 351000 362024 375948 383500 398250 407277 414180 417720 435125 452530 460200 469935 517725 522150 531000 543036 575250 626580 678795 690300 696200 751896 767000 783225 796500 814554 828360 862875 870250 905060 939870 1035450 1044300 1086072 1131325 1150500 1221831 1253160 1305375 1357590 1380600 1566450 1593000 1629108 1725750 1740500 1810120 1879740 2036385 2070900 2088600 2262650 2301000 2349675 2443662 2588625 2610750 2715180 3132900 3258216 3393975 3451500 3481000 3759480 3916125 4072770 4141800 4525300 4699350 4887324 5177250 5221500 5430360 5656625 6109155 6265800 6787950 6903000 7832250 8145540 9050600 9398700 9774648 10181925 10354500 10443000 11313250 11748375 12218310 13575900 15664500 16291080 16969875 18797400 20363850 20709000 22626500 23496750 24436620 27151800 30545775 31329000 33939750 40727700 45253000 46993500 48873240 50909625 61091550 67879500 81455400 93987000 101819250 122183100 135759000 152728875 203638500 244366200 305457750 407277000 610915500 1221831000
• Sum of all divisors σ(n): 4640126400
• Sum of proper divisors (its aliquot sum) s(n): 3418295400
• 1221831000 is an abundant number, because the sum of its proper divisors (3418295400) is greater than itself. Its abundance is 2196464400

Bases of 1221831000

• Binary: 1001000110100111010100101011000₂
• Hexadecimal: 0x48D3A958
• Base-36: K7G2U0

Squares and roots of 1221831000

• 1221831000 squared (1221831000²) is 1492870992561000000
• 1221831000 cubed (1221831000³) is 1824036057711799191000000000
• The square root of 1221831000 is 34954.6992548927
• The cube root of 1221831000 is 1069.0640197603

Scales and comparisons

• 1,221,831,000 seconds is equal to 38 years, 44 weeks, 1 day, 13 hours, 30 minutes.
• To count from 1 to 1,221,831,000 would take you about seventy-seven 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 1221831000 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221831000

• 1221831000 backwards is 0001381221
• 1221831000 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1221831000's digits is 18
• More coming soon!