6681813840

Names of 6681813840

• Cardinal: 6681813840 can be written as Six billion, six hundred eighty-one million, eight hundred thirteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.68181384 × 10⁹

Factors of 6681813840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 729

Divisors of 6681813840

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 36 39 40 45 48 52 60 65 72 78 80 89 90 104 117 120 130 144 156 169 178 180 195 208 234 240 260 267 312 338 356 360 390 445 468 507 520 534 585 617 624 676 712 720 780 801 845 890 936 1014 1040 1068 1157 1170 1234 1335 1352 1424 1521 1560 1602 1690 1780 1851 1872 2028 2136 2314 2340 2468 2535 2670 2704 3042 3085 3120 3204 3380 3471 3560 3702 4005 4056 4272 4628 4680 4936 5070 5340 5553 5785 6084 6170 6408 6760 6942 7120 7404 7605 8010 8021 8112 9255 9256 9360 9872 10140 10413 10680 11106 11570 12168 12340 12816 13520 13884 14808 15041 15210 16020 16042 17355 18510 18512 20280 20826 21360 22212 23140 24063 24336 24680 27765 27768 29616 30082 30420 32040 32084 34710 37020 40105 40560 41652 44424 45123 46280 48126 49360 52065 54913 55530 55536 60164 60840 64080 64168 69420 72189 74040 75205 80210 83304 88848 90246 92560 96252 104130 104273 109826 111060 120315 120328 121680 128336 135369 138840 144378 148080 150410 160420 164739 166608 180492 192504 208260 208546 219652 222120 225615 240630 240656 270738 274565 277680 288756 300820 312819 320840 329478 360945 360984 385008 416520 417092 439304 444240 451230 481260 494217 521365 541476 549130 577512 601640 625638 641680 658956 676845 713869 721890 721968 823695 833040 834184 878608 902460 938457 962520 988434 1042730 1082952 1098260 1155024 1203280 1251276 1317912 1353690 1427738 1443780 1564095 1647390 1668368 1804920 1876914 1925040 1976868 2085460 2141607 2165904 2196520 2471085 2502552 2635824 2707380 2855476 2887560 3128190 3294780 3569345 3609840 3753828 3953736 4170920 4283214 4393040 4692285 4942170 5005104 5414760 5710952 5775120 6256380 6424821 6589560 7138690 7507656 7907472 8341840 8566428 9280297 9384570 9884340 10708035 10829520 11421904 12512760 12849642 13179120 14277380 15015312 17132856 18560594 18769140 19768680 21416070 25025520 25699284 27840891 28554760 32124105 34265712 37121188 37538280 39537360 42832140 46401485 51398568 55681782 57109520 64248210 74242376 75076560 83522673 85664280 92802970 102797136 111363564 128496420 139204455 148484752 167045346 171328560 185605940 222727128 256992840 278408910 334090692 371211880 417613365 445454256 513985680 556817820 668181384 742423760 835226730 1113635640 1336362768 1670453460 2227271280 3340906920 6681813840
• Sum of all divisors σ(n): 24611516280
• Sum of proper divisors (its aliquot sum) s(n): 17929702440
• 6681813840 is an abundant number, because the sum of its proper divisors (17929702440) is greater than itself. Its abundance is 11247888600

Bases of 6681813840

• Binary: 110001110010001000110001101010000₂
• Hexadecimal: 0x18E446350
• Base-36: 32I6GK0

Squares and roots of 6681813840

• 6681813840 squared (6681813840²) is 44646636192415545600
• 6681813840 cubed (6681813840³) is 298320511619927095621231104000
• The square root of 6681813840 is 81742.3625790201
• The cube root of 6681813840 is 1883.4963831651

Scales and comparisons

• 6,681,813,840 seconds is equal to 212 years, 23 weeks, 6 days, 19 hours, 24 minutes.
• To count from 1 to 6,681,813,840 would take you about four hundred twenty-four 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 6681813840 cubic inches would be around 157 feet tall.

Recreational maths with 6681813840

• 6681813840 backwards is 0483181866
• 6681813840 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6681813840's digits is 45
• More coming soon!