18943930368

Names of 18943930368

• Cardinal: 18943930368 can be written as Eighteen billion, nine hundred forty-three million, nine hundred thirty thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8943930368 × 10¹⁰

Factors of 18943930368

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 184

Divisors of 18943930368

• Number of divisors d(n): 468
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 31 32 33 36 44 48 62 64 66 72 88 93 96 99 121 124 128 132 137 144 176 186 192 198 242 248 256 264 274 279 288 341 352 363 372 384 396 411 484 496 512 528 548 558 576 682 704 726 744 768 792 822 968 992 1023 1024 1056 1089 1096 1116 1152 1233 1364 1408 1452 1488 1507 1536 1584 1644 1936 1984 2046 2048 2112 2178 2192 2232 2304 2466 2728 2816 2904 2976 3014 3069 3072 3168 3288 3751 3872 3968 4092 4096 4224 4247 4356 4384 4464 4521 4608 4932 5456 5632 5808 5952 6028 6138 6144 6336 6576 7502 7744 7936 8184 8448 8494 8712 8768 8928 9042 9216 9864 10912 11253 11264 11616 11904 12056 12276 12288 12672 12741 13152 13563 15004 15488 15872 16368 16577 16896 16988 17424 17536 17856 18084 18432 19728 21824 22506 22528 23232 23808 24112 24552 25344 25482 26304 27126 30008 30976 31744 32736 33154 33759 33792 33976 34848 35072 35712 36168 36864 38223 39456 43648 45012 45056 46464 46717 47616 48224 49104 49731 50688 50964 52608 54252 60016 61952 63488 65472 66308 67518 67584 67952 69696 70144 71424 72336 76446 78912 87296 90024 92928 93434 95232 96448 98208 99462 101376 101928 105216 108504 120032 123904 126976 130944 132616 135036 135168 135904 139392 140151 140288 142848 144672 149193 152892 157824 174592 180048 185856 186868 190464 192896 196416 198924 202752 203856 210432 217008 240064 247808 261888 265232 270072 271808 278784 280302 280576 285696 289344 298386 305784 315648 349184 360096 371712 373736 380928 385792 392832 397848 405504 407712 420453 420864 434016 480128 495616 513887 523776 530464 540144 543616 557568 560604 561152 571392 578688 596772 611568 631296 698368 720192 743424 747472 771584 785664 795696 815424 840906 841728 868032 960256 1027774 1047552 1060928 1080288 1087232 1115136 1121208 1142784 1157376 1193544 1223136 1262592 1396736 1440384 1486848 1494944 1541661 1543168 1571328 1591392 1630848 1681812 1683456 1736064 1920512 2055548 2095104 2121856 2160576 2174464 2230272 2242416 2314752 2387088 2446272 2525184 2880768 2989888 3083322 3086336 3142656 3182784 3261696 3363624 3472128 3841024 4111096 4190208 4243712 4321152 4348928 4460544 4484832 4624983 4629504 4774176 4892544 5050368 5761536 5979776 6166644 6172672 6285312 6365568 6523392 6727248 6944256 7682048 8222192 8487424 8642304 8697856 8969664 9249966 9259008 9548352 9785088 11523072 11959552 12333288 12570624 12731136 13046784 13454496 13888512 15364096 16444384 16974848 17284608 17395712 17939328 18499932 18518016 19096704 19570176 23046144 23919104 24666576 25462272 26093568 26908992 27777024 32888768 33949696 34569216 35878656 36999864 38193408 39140352 46092288 47838208 49333152 50924544 52187136 53817984 55554048 65777536 67899392 69138432 71757312 73999728 76386816 78280704 95676416 98666304 101849088 107635968 131555072 138276864 143514624 147999456 152773632 156561408 191352832 197332608 203698176 215271936 263110144 287029248 295998912 305547264 394665216 430543872 526220288 574058496 591997824 611094528 789330432 861087744 1052440576 1183995648 1578660864 1722175488 2104881152 2367991296 3157321728 4735982592 6314643456 9471965184 18943930368
• Sum of all divisors σ(n): 62540447424
• Sum of proper divisors (its aliquot sum) s(n): 43596517056
• 18943930368 is an abundant number, because the sum of its proper divisors (43596517056) is greater than itself. Its abundance is 24652586688

Bases of 18943930368

• Binary: 10001101001001001010111000000000000₂
• Hexadecimal: 0x469257000
• Base-36: 8PAQ680

Squares and roots of 18943930368

• 18943930368 squared (18943930368²) is 358872497787632615424
• 18943930368 cubed (18943930368³) is 6798455609079146318157978796032
• The square root of 18943930368 is 137636.9513175877
• The cube root of 18943930368 is 2665.7742151349

Scales and comparisons

• 18,943,930,368 seconds is equal to 602 years, 18 weeks, 4 days, 10 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,943,930,368 would take you about one 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 18943930368 cubic inches would be around 222.1 feet tall.

Recreational maths with 18943930368

• 18943930368 backwards is 86303934981
• The number of decimal digits it has is: 11
• The sum of 18943930368's digits is 54
• More coming soon!