18868921344

Names of 18868921344

• Cardinal: 18868921344 can be written as Eighteen billion, eight hundred sixty-eight million, nine hundred twenty-one thousand, three hundred forty-four.

Scientific notation

• Scientific notation: 1.8868921344 × 10¹⁰

Factors of 18868921344

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 325

Divisors of 18868921344

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 32 36 39 42 48 52 56 63 64 72 78 84 91 96 104 112 117 126 128 144 149 151 156 168 182 192 208 224 234 252 256 273 288 298 302 312 336 364 384 416 447 448 453 468 504 512 546 576 596 604 624 672 728 768 819 832 894 896 906 936 1008 1024 1043 1057 1092 1152 1192 1208 1248 1341 1344 1359 1456 1536 1638 1664 1788 1792 1812 1872 1937 1963 2016 2086 2114 2184 2304 2384 2416 2496 2682 2688 2718 2912 3072 3129 3171 3276 3328 3576 3584 3624 3744 3874 3926 4032 4172 4228 4368 4608 4768 4832 4992 5364 5376 5436 5811 5824 5889 6258 6342 6552 6656 7152 7168 7248 7488 7748 7852 8064 8344 8456 8736 9216 9387 9513 9536 9664 9984 10728 10752 10872 11622 11648 11778 12516 12684 13104 13312 13559 13741 14304 14496 14976 15496 15704 16128 16688 16912 17433 17472 17667 18774 19026 19072 19328 19968 21456 21504 21744 22499 23244 23296 23556 25032 25368 26208 27118 27482 28608 28992 29952 30992 31408 32256 33376 33824 34866 34944 35334 37548 38052 38144 38656 39936 40677 41223 42912 43488 44998 46488 46592 47112 50064 50736 52416 54236 54964 57216 57984 59904 61984 62816 64512 66752 67497 67648 69732 69888 70668 75096 76104 76288 77312 81354 82446 85824 86976 89996 92976 93184 94224 100128 101472 104832 108472 109928 114432 115968 119808 122031 123669 123968 125632 133504 134994 135296 139464 139776 141336 150192 152208 152576 154624 157493 162708 164892 171648 173952 179992 185952 188448 200256 202491 202944 209664 216944 219856 228864 231936 244062 247338 247936 251264 267008 269988 270592 278928 279552 282672 292487 300384 304416 314986 325416 329784 343296 347904 359984 371904 376896 400512 404982 405888 419328 433888 439712 457728 463872 472479 488124 494676 495872 502528 534016 539976 541184 557856 565344 584974 600768 608832 629972 650832 659568 686592 695808 719968 743808 753792 801024 809964 811776 838656 867776 877461 879424 944958 976248 989352 991744 1005056 1068032 1079952 1082368 1115712 1130688 1169948 1201536 1217664 1259944 1301664 1319136 1373184 1391616 1417437 1439936 1487616 1507584 1602048 1619928 1623552 1735552 1754922 1758848 1889916 1952496 1978704 1983488 2010112 2047409 2159904 2231424 2261376 2339896 2403072 2435328 2519888 2603328 2632383 2638272 2834874 2879872 2975232 3015168 3204096 3239856 3247104 3471104 3509844 3517696 3779832 3904992 3957408 4094818 4319808 4462848 4522752 4679792 4806144 4870656 5039776 5206656 5264766 5276544 5669748 5759744 5950464 6030336 6142227 6479712 6942208 7019688 7035392 7559664 7809984 7914816 8189636 8639616 8925696 9045504 9359584 9612288 9741312 10079552 10413312 10529532 10553088 11339496 11519488 12284454 12959424 13884416 14039376 14070784 15119328 15619968 15829632 16379272 17279232 17851392 18091008 18426681 18719168 20159104 20826624 21059064 21106176 22678992 23038976 24568908 25918848 28078752 30238656 31239936 31659264 32758544 34558464 36853362 37438336 40318208 41653248 42118128 42212352 45357984 49137816 51837696 56157504 60477312 62479872 63318528 65517088 69116928 73706724 74876672 80636416 84236256 90715968 98275632 103675392 112315008 120954624 124959744 126637056 131034176 147413448 149753344 161272832 168472512 181431936 196551264 207350784 224630016 241909248 262068352 294826896 299506688 336945024 362863872 393102528 449260032 483818496 524136704 589653792 673890048 725727744 786205056 898520064 1048273408 1179307584 1347780096 1451455488 1572410112 2096546816 2358615168 2695560192 3144820224 4717230336 6289640448 9434460672 18868921344
• Sum of all divisors σ(n): 67953849600
• Sum of proper divisors (its aliquot sum) s(n): 49084928256
• 18868921344 is an abundant number, because the sum of its proper divisors (49084928256) is greater than itself. Its abundance is 30216006912

Bases of 18868921344

• Binary: 10001100100101011001110010000000000₂
• Hexadecimal: 0x464ACE400
• Base-36: 8O22GW0

Squares and roots of 18868921344

• 18868921344 squared (18868921344²) is 356036192686058766336
• 18868921344 cubed (18868921344³) is 6718018915410470947355659075584
• The square root of 18868921344 is 137364.1923646771
• The cube root of 18868921344 is 2662.2511585461

Scales and comparisons

• 18,868,921,344 seconds is equal to 599 years, 50 weeks, 4 days, 7 hours, 2 minutes, 24 seconds.
• To count from 1 to 18,868,921,344 would take you about one thousand, one hundred ninety-nine 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 18868921344 cubic inches would be around 221.9 feet tall.

Recreational maths with 18868921344

• 18868921344 backwards is 44312986881
• The number of decimal digits it has is: 11
• The sum of 18868921344's digits is 54
• More coming soon!