18971947008

Names of 18971947008

• Cardinal: 18971947008 can be written as Eighteen billion, nine hundred seventy-one million, nine hundred forty-seven thousand and eight.

Scientific notation

• Scientific notation: 1.8971947008 × 10¹⁰

Factors of 18971947008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 401

Divisors of 18971947008

• Number of divisors d(n): 468
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 81 84 96 98 108 112 126 128 144 147 162 168 189 192 196 216 224 243 252 256 288 294 324 336 378 384 389 392 432 441 448 486 504 512 567 576 588 648 672 756 768 778 784 864 882 896 972 1008 1024 1134 1152 1167 1176 1296 1323 1344 1512 1536 1556 1568 1701 1728 1764 1792 1944 2016 2048 2268 2304 2334 2352 2592 2646 2688 2723 3024 3072 3112 3136 3402 3456 3501 3528 3584 3888 3969 4032 4096 4536 4608 4668 4704 5184 5292 5376 5446 6048 6144 6224 6272 6804 6912 7002 7056 7168 7776 7938 8064 8169 9072 9216 9336 9408 10368 10503 10584 10752 10892 11907 12096 12288 12448 12544 13608 13824 14004 14112 14336 15552 15876 16128 16338 18144 18432 18672 18816 19061 20736 21006 21168 21504 21784 23814 24192 24507 24896 25088 27216 27648 28008 28224 28672 31104 31509 31752 32256 32676 36288 36864 37344 37632 38122 41472 42012 42336 43008 43568 47628 48384 49014 49792 50176 54432 55296 56016 56448 57183 62208 63018 63504 64512 65352 72576 73521 74688 75264 76244 82944 84024 84672 86016 87136 94527 95256 96768 98028 99584 100352 108864 110592 112032 112896 114366 124416 126036 127008 129024 130704 145152 147042 149376 150528 152488 165888 168048 169344 171549 174272 189054 190512 193536 196056 199168 200704 217728 220563 224064 225792 228732 248832 252072 254016 258048 261408 290304 294084 298752 301056 304976 331776 336096 338688 343098 348544 378108 381024 387072 392112 398336 435456 441126 448128 451584 457464 497664 504144 508032 514647 522816 580608 588168 597504 602112 609952 661689 672192 677376 686196 697088 756216 762048 774144 784224 796672 870912 882252 896256 903168 914928 995328 1008288 1016064 1029294 1045632 1161216 1176336 1195008 1219904 1323378 1344384 1354752 1372392 1394176 1512432 1524096 1543941 1568448 1593344 1741824 1764504 1792512 1806336 1829856 2016576 2032128 2058588 2091264 2322432 2352672 2390016 2439808 2646756 2688768 2709504 2744784 2788352 3024864 3048192 3087882 3136896 3483648 3529008 3585024 3659712 4033152 4064256 4117176 4182528 4631823 4705344 4780032 4879616 5293512 5377536 5419008 5489568 5576704 6049728 6096384 6175764 6273792 6967296 7058016 7170048 7319424 8066304 8128512 8234352 8365056 9263646 9410688 9759232 10587024 10755072 10979136 11153408 12099456 12192768 12351528 12547584 14116032 14340096 14638848 16132608 16257024 16468704 16730112 18527292 18821376 19518464 21174048 21510144 21958272 24198912 24385536 24703056 25095168 28232064 29277696 32265216 32937408 33460224 37054584 37642752 39036928 42348096 43020288 43916544 48397824 48771072 49406112 50190336 56464128 58555392 64530432 65874816 74109168 75285504 78073856 84696192 87833088 96795648 98812224 100380672 112928256 117110784 129060864 131749632 148218336 150571008 169392384 175666176 193591296 197624448 225856512 234221568 263499264 296436672 301142016 338784768 351332352 387182592 395248896 451713024 526998528 592873344 677569536 702664704 790497792 903426048 1053997056 1185746688 1355139072 1580995584 2107994112 2371493376 2710278144 3161991168 4742986752 6323982336 9485973504 18971947008
• Sum of all divisors σ(n): 66279278520
• Sum of proper divisors (its aliquot sum) s(n): 47307331512
• 18971947008 is an abundant number, because the sum of its proper divisors (47307331512) is greater than itself. Its abundance is 28335384504

Bases of 18971947008

• Binary: 10001101010110100001111000000000000₂
• Hexadecimal: 0x46AD0F000
• Base-36: 8PREO00

Squares and roots of 18971947008

• 18971947008 squared (18971947008²) is 359934773274360152064
• 18971947008 cubed (18971947008³) is 6828663444897655450065029824512
• The square root of 18971947008 is 137738.6910348723
• The cube root of 18971947008 is 2667.0877272899

Scales and comparisons

• 18,971,947,008 seconds is equal to 603 years, 12 weeks, 6 days, 17 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,971,947,008 would take you about one thousand, two hundred six 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 18971947008 cubic inches would be around 222.3 feet tall.

Recreational maths with 18971947008

• 18971947008 backwards is 80074917981
• 18971947008 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18971947008's digits is 54
• More coming soon!