81096426840

Names of 81096426840

• Cardinal: 81096426840 can be written as Eighty-one billion, ninety-six million, four hundred twenty-six thousand, eight hundred forty.

Scientific notation

• Scientific notation: 8.109642684 × 10¹⁰

Factors of 81096426840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 127798

Divisors of 81096426840

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 26 30 33 37 39 40 44 52 55 60 65 66 74 78 88 104 110 111 120 130 132 143 148 156 165 185 195 220 222 260 264 286 296 312 330 370 390 407 429 440 444 481 520 555 572 660 715 740 780 814 858 888 962 1110 1144 1221 1320 1430 1443 1480 1560 1628 1716 1924 2035 2145 2220 2405 2442 2860 2886 3256 3432 3848 4070 4290 4440 4810 4884 5291 5720 5772 6105 7215 8140 8580 9620 9768 10582 11544 12210 14430 15873 16280 17160 19240 21164 24420 26455 28860 31746 42328 48840 52910 57720 63492 79365 105820 126984 127727 158730 211640 255454 317460 383181 510908 634920 638635 766362 1021816 1277270 1404997 1532724 1660451 1915905 2554540 2809994 3065448 3320902 3831810 4214991 4725899 4981353 5109080 5619988 6641804 7024985 7663620 8302255 8429982 9451798 9962706 11239976 13283608 14049970 14177697 15327240 16604510 16859964 18264961 18903596 19925412 21074955 23629495 24906765 28099940 28355394 33209020 33719928 36529922 37807192 39850824 42149910 47258990 49813530 51984889 54794883 56199880 56710788 61436687 66418040 70888485 73059844 84299820 91324805 94517980 99627060 103969778 109589766 113421576 122873374 141776970 146119688 155954667 168599640 182649610 184310061 189035960 199254120 207939556 219179532 245746748 259924445 273974415 283553940 307183435 311909334 365299220 368620122 415879112 438359064 491493496 519848890 547948830 567107880 614366870 623818668 675803557 730598440 737240244 779773335 921550305 1039697780 1095897660 1228733740 1247637336 1351607114 1474480488 1559546670 1843100610 2027410671 2079395560 2191795320 2457467480 2703214228 3119093340 3379017785 3686201220 4054821342 5406428456 6238186680 6758035570 7372402440 8109642684 10137053355 13516071140 16219285368 20274106710 27032142280 40548213420 81096426840
• Sum of all divisors σ(n): 293549598720
• Sum of proper divisors (its aliquot sum) s(n): 212453171880
• 81096426840 is an abundant number, because the sum of its proper divisors (212453171880) is greater than itself. Its abundance is 131356745040

Bases of 81096426840

• Binary: 1001011100001101110010100010101011000₂
• Hexadecimal: 0x12E1B94558
• Base-36: 1196PVFC

Squares and roots of 81096426840

• 81096426840 squared (81096426840²) is 6576630446215472385600
• 81096426840 cubed (81096426840³) is 533341229835229611194850669504000
• The square root of 81096426840 is 284774.3437179691
• The cube root of 81096426840 is 4328.4649630073

Scales and comparisons

• 81,096,426,840 seconds is equal to 2,578 years, 32 weeks, 1 hour, 14 minutes.
• To count from 1 to 81,096,426,840 would take you about five thousand, one hundred fifty-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 81096426840 cubic inches would be around 360.7 feet tall.

Recreational maths with 81096426840

• 81096426840 backwards is 04862469018
• The number of decimal digits it has is: 11
• The sum of 81096426840's digits is 48
• More coming soon!