81498316140

Names of 81498316140

• Cardinal: 81498316140 can be written as Eighty-one billion, four hundred ninety-eight million, three hundred sixteen thousand, one hundred forty.

Scientific notation

• Scientific notation: 8.149831614 × 10¹⁰

Factors of 81498316140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 378

Divisors of 81498316140

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 19 20 30 31 36 38 45 57 60 62 76 90 93 95 114 124 137 155 171 180 181 186 190 228 274 279 285 310 342 362 372 380 411 465 543 548 558 570 589 620 684 685 724 822 855 905 930 961 1086 1116 1140 1178 1233 1370 1395 1629 1644 1710 1767 1810 1860 1922 2055 2172 2356 2466 2603 2715 2740 2790 2883 2945 3258 3420 3439 3534 3620 3844 4110 4247 4805 4932 5206 5301 5430 5580 5611 5766 5890 6165 6516 6878 7068 7809 8145 8220 8494 8649 8835 9610 10317 10412 10602 10860 11222 11532 11780 12330 12741 13015 13756 14415 15618 16290 16833 16988 17195 17298 17670 18259 19220 20634 21204 21235 22444 23427 24660 24797 25482 26030 26505 28055 28830 30951 31236 32580 33666 34390 34596 35340 36518 38223 39045 41268 42470 43245 46854 49594 50499 50964 51585 52060 53010 54777 56110 57660 61902 63705 67332 68780 73036 74391 76446 78090 80693 84165 84940 86490 91295 93708 99188 100998 103170 106020 106609 109554 112220 117135 123804 123985 127410 131657 148782 152892 154755 156180 161386 164331 168330 172980 173941 182590 191115 201996 206340 213218 219108 223173 234270 242079 247970 252495 254820 263314 273885 297564 309510 319827 322772 328662 336660 347882 365180 371955 382230 394971 403465 426436 446346 468540 471143 484158 495940 504990 521823 526628 533045 547770 619020 639654 657324 658285 695764 726237 743910 764460 768707 789942 806930 821655 869705 892692 942286 959481 968316 1009980 1043646 1066090 1095540 1115865 1184913 1210395 1279308 1316570 1413429 1452474 1487820 1537414 1565469 1579884 1599135 1613860 1643310 1739410 1884572 1918962 1974855 2087292 2132180 2231730 2306121 2355715 2369826 2420790 2501483 2609115 2633140 2826858 2904948 3074828 3130938 3198270 3286620 3304879 3478820 3631185 3837924 3843535 3949710 4240287 4463460 4612242 4711430 4739652 4797405 4841580 5002966 5218230 5653716 5924565 6261876 6396540 6609758 6918363 7067145 7262370 7504449 7687070 7827345 7899420 8480574 9224484 9422860 9594810 9914637 10005932 10436460 11530605 11849130 12507415 13219516 13836726 14134290 14524740 14605433 15008898 15374140 15654690 16524395 16961148 19189620 19829274 21201435 22513347 23061210 23698260 23829917 25014830 27673452 28268580 29210866 29743911 30017796 31309380 33048790 34591815 37522245 39658548 42402870 43816299 45026694 46122420 47659834 49573185 50029660 58421732 59487822 66097580 69183630 71489751 73027165 75044490 84805740 87632598 90053388 95319668 99146370 112566735 118975644 119149585 131448897 138367260 142979502 146054330 148719555 150088980 175265196 198292740 214469253 219081495 225133470 238299170 262897794 285959004 292108660 297439110 357448755 428938506 438162990 450266940 452768423 476598340 525795588 594878220 657244485 714897510 857877012 876325980 905536846 1072346265 1314488970 1358305269 1429795020 1811073692 2144692530 2263842115 2628977940 2716610538 4074915807 4289385060 4527684230 5433221076 6791526345 8149831614 9055368460 13583052690 16299663228 20374579035 27166105380 40749158070 81498316140
• Sum of all divisors σ(n): 272346852960
• Sum of proper divisors (its aliquot sum) s(n): 190848536820
• 81498316140 is an abundant number, because the sum of its proper divisors (190848536820) is greater than itself. Its abundance is 109350220680

Bases of 81498316140

• Binary: 1001011111001101011011001110101101100₂
• Hexadecimal: 0x12F9AD9D6C
• Base-36: 11FTZR70

Squares and roots of 81498316140

• 81498316140 squared (81498316140²) is 6641975533655384499600
• 81498316140 cubed (81498316140³) is 541309821835991735761656503544000
• The square root of 81498316140 is 285479.0993050105
• The cube root of 81498316140 is 4335.6033706357

Scales and comparisons

• 81,498,316,140 seconds is equal to 2,591 years, 20 weeks, 3 days, 13 hours, 9 minutes.
• To count from 1 to 81,498,316,140 would take you about five thousand, one hundred eighty-two 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 81498316140 cubic inches would be around 361.3 feet tall.

Recreational maths with 81498316140

• 81498316140 backwards is 04161389418
• 81498316140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81498316140's digits is 45
• More coming soon!