81842367168

Names of 81842367168

• Cardinal: 81842367168 can be written as Eighty-one billion, eight hundred forty-two million, three hundred sixty-seven thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 8.1842367168 × 10¹⁰

Factors of 81842367168

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 393

Divisors of 81842367168

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 64 72 87 96 97 108 113 116 144 149 174 192 194 216 226 232 261 288 291 298 339 348 388 432 447 452 464 522 576 582 596 678 696 776 783 864 873 894 904 928 1017 1044 1164 1192 1341 1356 1392 1552 1566 1728 1746 1788 1808 1856 2034 2088 2328 2384 2619 2682 2712 2784 2813 3051 3104 3132 3277 3492 3576 3616 4023 4068 4176 4321 4656 4768 5238 5364 5424 5568 5626 6102 6208 6264 6554 6984 7152 7232 8046 8136 8352 8439 8642 9312 9536 9831 10476 10728 10848 10961 11252 12204 12528 12963 13108 13968 14304 14453 16092 16272 16704 16837 16878 17284 18624 19662 20952 21456 21696 21922 22504 24408 25056 25317 25926 26216 27936 28608 28906 29493 32184 32544 32883 33674 33756 34568 38889 39324 41904 42912 43359 43844 45008 48816 50112 50511 50634 51852 52432 55872 57812 58986 64368 65088 65766 67348 67512 69136 75951 77778 78648 83808 85824 86718 87688 88479 90016 97632 98649 101022 101268 103704 104864 115624 116667 117972 128736 130077 131532 134696 135024 138272 151533 151902 155556 157296 167616 173436 175376 176958 180032 195264 197298 202044 202536 207408 209728 231248 233334 235944 257472 260154 263064 269392 270048 276544 295947 303066 303804 311112 314592 317869 346872 350752 353916 390231 394596 404088 405072 414816 419137 454599 462496 466668 471888 488273 520308 526128 538784 540096 591894 606132 607608 622224 629184 635738 693744 701504 707832 780462 789192 808176 810144 829632 838274 909198 924992 933336 943776 953607 976546 1040616 1052256 1077568 1183788 1212264 1215216 1244448 1257411 1271476 1387488 1415664 1464819 1560924 1578384 1616352 1620288 1633189 1676548 1818396 1866672 1887552 1907214 1953092 2081232 2104512 2367576 2424528 2430432 2488896 2514822 2542952 2774976 2831328 2860821 2929638 3121848 3156768 3232704 3266378 3353096 3636792 3733344 3772233 3814428 3906184 4162464 4394457 4735152 4849056 4860864 4899567 5029644 5085904 5662656 5721642 5859276 6243696 6313536 6532756 6706192 7273584 7466688 7544466 7628856 7812368 8324928 8582463 8788914 9470304 9698112 9799134 10059288 10171808 11316699 11443284 11718552 12487392 13065512 13183371 13412384 14547168 14698701 15088932 15257712 15624736 17164926 17577828 18940608 19598268 20118576 20343616 22633398 22886568 23437104 24974784 26131024 26366742 26824768 29094336 29397402 30177864 30515424 31249472 34329852 35155656 39196536 40237152 44096103 45266796 45773136 46874208 47362481 52262048 52733484 58794804 60355728 61030848 68659704 70311312 78393072 80474304 88192206 90533592 91546272 93748416 94724962 104524096 105466968 117589608 120711456 137319408 140622624 142087443 156786144 176384412 181067184 183092544 189449924 210933936 235179216 241422912 274638816 281245248 284174886 313572288 352768824 362134368 378899848 421867872 426262329 470358432 549277632 568349772 705537648 724268736 757799696 843735744 852524658 940716864 1136699544 1278786987 1411075296 1515599392 1705049316 2273399088 2557573974 2822150592 3031198784 3410098632 4546798176 5115147948 6820197264 9093596352 10230295896 13640394528 20460591792 27280789056 40921183584 81842367168
• Sum of all divisors σ(n): 255391920000
• Sum of proper divisors (its aliquot sum) s(n): 173549552832
• 81842367168 is an abundant number, because the sum of its proper divisors (173549552832) is greater than itself. Its abundance is 91707185664

Bases of 81842367168

• Binary: 1001100001110001011110110101011000000₂
• Hexadecimal: 0x130E2F6AC0
• Base-36: 11LITYO0

Squares and roots of 81842367168

• 81842367168 squared (81842367168²) is 6698173063661724340224
• 81842367168 cubed (81842367168³) is 548194339231010282000615159365632
• The square root of 81842367168 is 286081.0499980731
• The cube root of 81842367168 is 4341.6958263403

Scales and comparisons

• 81,842,367,168 seconds is equal to 2,602 years, 17 weeks, 2 days, 14 hours, 52 minutes, 48 seconds.
• To count from 1 to 81,842,367,168 would take you about five thousand, two hundred 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 81842367168 cubic inches would be around 361.8 feet tall.

Recreational maths with 81842367168

• 81842367168 backwards is 86176324818
• 81842367168 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81842367168's digits is 54
• More coming soon!