18381384912

Names of 18381384912

• Cardinal: 18381384912 can be written as Eighteen billion, three hundred eighty-one million, three hundred eighty-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.8381384912 × 10¹⁰

Factors of 18381384912

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 313

Divisors of 18381384912

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 17 22 24 33 34 44 47 48 51 66 68 88 94 102 121 132 136 141 176 187 188 204 233 242 264 272 282 289 363 374 376 408 466 484 517 528 561 564 578 699 726 748 752 799 816 867 932 968 1034 1122 1128 1156 1398 1452 1496 1551 1598 1734 1864 1936 2057 2068 2244 2256 2312 2397 2563 2796 2904 2992 3102 3179 3196 3468 3728 3961 4114 4136 4488 4624 4794 5126 5592 5687 5808 6171 6204 6358 6392 6936 7689 7922 8228 8272 8789 8976 9537 9588 10252 10951 11184 11374 11883 12342 12408 12716 12784 13583 13872 15378 15844 16456 17061 17578 19074 19176 20504 21902 22748 23766 24684 24816 25432 26367 27166 28193 30756 31688 32853 32912 34122 34969 35156 38148 38352 40749 41008 43571 43804 45496 47532 49368 50864 52734 54332 56386 61512 63376 65706 67337 68244 69938 70312 76296 81498 84579 87142 87608 90992 95064 96679 98736 104907 105468 108664 112772 120461 123024 130713 131412 134674 136488 139876 140624 149413 152592 162996 169158 174284 175216 186167 190128 193358 202011 209814 210936 217328 225544 240922 261426 262824 269348 272976 279752 290037 298826 325992 338316 348568 361383 372334 386716 404022 419628 421872 448239 451088 479281 481844 522852 525648 538696 558501 559504 580074 597652 651984 676632 697136 722766 740707 744668 773432 808044 839256 896478 958562 963688 1045704 1077392 1117002 1160148 1195304 1325071 1353264 1437843 1445532 1481414 1489336 1546864 1616088 1643543 1678512 1792956 1917124 1927376 2047837 2091408 2222121 2234004 2320296 2390608 2650142 2875686 2891064 2962828 2978672 3164839 3232176 3287086 3585912 3834248 3975213 4095674 4444242 4468008 4640592 4930629 5300284 5751372 5782128 5925656 6143511 6329678 6574172 7171824 7668496 7950426 8147777 8191348 8888484 8936016 9494517 9861258 10600568 11502744 11851312 12287022 12659356 13148344 15900852 16295554 16382696 17776968 18989034 19722516 21201136 22526207 23005488 24443331 24574044 25318712 26296688 31801704 32591108 32765392 34813229 35553936 37978068 39445032 45052414 48886662 49148088 50637424 63603408 65182216 67578621 69626458 75956136 78890064 90104828 97773324 98296176 104439687 130364432 135157242 139252916 151912272 180209656 195546648 208879374 270314484 278505832 360419312 382945519 391093296 417758748 540628968 557011664 765891038 835517496 1081257936 1148836557 1531782076 1671034992 2297673114 3063564152 4595346228 6127128304 9190692456 18381384912
• Sum of all divisors σ(n): 56868110208
• Sum of proper divisors (its aliquot sum) s(n): 38486725296
• 18381384912 is an abundant number, because the sum of its proper divisors (38486725296) is greater than itself. Its abundance is 20105340384

Bases of 18381384912

• Binary: 10001000111100111011010110011010000₂
• Hexadecimal: 0x4479DACD0
• Base-36: 8FZSVDC

Squares and roots of 18381384912

• 18381384912 squared (18381384912²) is 337875311283101247744
• 18381384912 cubed (18381384912³) is 6210616148956500635849935638528
• The square root of 18381384912 is 135577.9661744489
• The cube root of 18381384912 is 2639.1216522439

Scales and comparisons

• 18,381,384,912 seconds is equal to 584 years, 24 weeks, 3 days, 12 hours, 15 minutes, 12 seconds.
• To count from 1 to 18,381,384,912 would take you about one thousand, one hundred sixty-eight 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 18381384912 cubic inches would be around 219.9 feet tall.

Recreational maths with 18381384912

• 18381384912 backwards is 21948318381
• 18381384912 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18381384912's digits is 48
• More coming soon!