18135641472

Names of 18135641472

• Cardinal: 18135641472 can be written as Eighteen billion, one hundred thirty-five million, six hundred forty-one thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8135641472 × 10¹⁰

Factors of 18135641472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 225

Divisors of 18135641472

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 43 48 52 64 67 78 86 96 97 104 128 129 134 156 169 172 192 194 201 208 258 268 291 312 338 344 384 388 402 416 507 516 536 559 582 624 676 688 776 804 832 871 1014 1032 1072 1118 1164 1248 1261 1352 1376 1552 1608 1664 1677 1742 2028 2064 2144 2236 2328 2496 2522 2613 2704 2752 2881 3104 3216 3354 3484 3783 4056 4128 4171 4288 4472 4656 4992 5044 5226 5408 5504 5762 6208 6432 6499 6708 6968 7267 7566 8112 8256 8342 8576 8643 8944 9312 10088 10452 10816 11323 11524 12416 12513 12864 12998 13416 13936 14534 15132 16224 16393 16512 16684 17286 17888 18624 19497 20176 20904 21632 21801 22646 23048 25026 25728 25996 26832 27872 29068 30264 32448 32786 33368 33969 34572 35776 37248 37453 38994 40352 41808 43602 45292 46096 49179 50052 51992 53664 54223 55744 58136 60528 64896 65572 66736 67938 69144 71552 74906 77988 80704 83616 84487 87204 90584 92192 98358 100104 103984 107328 108446 111488 112359 116272 121056 131144 133472 135876 138288 149812 155976 161408 162669 167232 168974 174408 181168 184384 196716 200208 207968 214656 216892 224718 232544 242112 253461 262288 266944 271752 276576 279457 299624 311952 325338 334464 337948 348816 362336 368768 393432 400416 415936 433784 449436 465088 484224 486889 506922 524576 533888 543504 553152 558914 599248 623904 650676 675896 697632 704899 724672 786864 800832 831872 838371 867568 898872 930176 973778 1013844 1049152 1087008 1098331 1106304 1117828 1198496 1247808 1301352 1351792 1395264 1409798 1449344 1460667 1573728 1601664 1676742 1735136 1797744 1947556 2027688 2098304 2114697 2174016 2196662 2235656 2396992 2495616 2602704 2703584 2790528 2819596 2921334 3147456 3294993 3353484 3470272 3595488 3632941 3895112 4055376 4229394 4348032 4393324 4471312 4793984 5205408 5407168 5639192 5842668 6294912 6589986 6706968 6940544 7190976 7265882 7790224 8110752 8458788 8786648 8942624 10410816 10814336 10898823 11278384 11685336 13179972 13413936 14381952 14531764 15580448 16221504 16917576 17573296 17885248 20821632 21797646 22556768 23370672 26359944 26827872 29063528 31160896 32443008 33835152 35146592 35770496 43595292 45113536 46741344 47228233 52719888 53655744 58127056 62321792 67670304 70293184 87190584 90227072 93482688 94456466 105439776 107311488 116254112 135340608 140586368 141684699 174381168 186965376 188912932 210879552 232508224 270681216 283369398 348762336 377825864 421759104 465016448 566738796 697524672 755651728 1133477592 1395049344 1511303456 2266955184 3022606912 4533910368 6045213824 9067820736 18135641472
• Sum of all divisors σ(n): 54731698560
• Sum of proper divisors (its aliquot sum) s(n): 36596057088
• 18135641472 is an abundant number, because the sum of its proper divisors (36596057088) is greater than itself. Its abundance is 18460415616

Bases of 18135641472

• Binary: 10000111000111101111110110110000000₂
• Hexadecimal: 0x438F7ED80
• Base-36: 8BXHQIO

Squares and roots of 18135641472

• 18135641472 squared (18135641472²) is 328901491600926326784
• 18135641472 cubed (18135641472³) is 5964839531280419165640534786048
• The square root of 18135641472 is 134668.6358139861
• The cube root of 18135641472 is 2627.3079129889

Scales and comparisons

• 18,135,641,472 seconds is equal to 576 years, 34 weeks, 1 day, 6 hours, 11 minutes, 12 seconds.
• To count from 1 to 18,135,641,472 would take you about one thousand, one hundred fifty-three 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 18135641472 cubic inches would be around 218.9 feet tall.

Recreational maths with 18135641472

• 18135641472 backwards is 27414653181
• The number of decimal digits it has is: 11
• The sum of 18135641472's digits is 42
• More coming soon!