18121875408

Names of 18121875408

• Cardinal: 18121875408 can be written as Eighteen billion, one hundred twenty-one million, eight hundred seventy-five thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.8121875408 × 10¹⁰

Factors of 18121875408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 192

Divisors of 18121875408

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 49 52 56 63 72 78 84 91 98 104 112 117 126 144 147 156 167 168 169 182 196 208 234 252 273 294 312 334 336 338 343 364 392 441 468 501 504 507 546 588 624 637 668 676 686 728 784 819 882 936 1002 1008 1014 1029 1092 1169 1176 1183 1274 1336 1352 1372 1456 1503 1521 1638 1764 1872 1911 2004 2028 2058 2171 2184 2197 2338 2352 2366 2548 2672 2704 2744 3006 3042 3087 3276 3507 3528 3549 3822 4008 4056 4116 4342 4368 4394 4459 4676 4732 5096 5488 5733 6012 6084 6174 6513 6552 6591 7014 7056 7098 7644 8016 8112 8183 8232 8281 8684 8788 8918 9352 9464 10192 10521 10647 11466 12024 12168 12348 13026 13104 13182 13377 14028 14196 15197 15288 15379 16366 16464 16562 17368 17576 17836 18704 18928 19539 19773 21042 21294 22932 24048 24336 24549 24696 24843 26052 26364 26754 28056 28223 28392 30394 30576 30758 32732 33124 34736 35152 35672 39078 39546 40131 42084 42588 45591 45864 46137 49098 49392 49686 52104 52728 53508 56112 56446 56784 57281 57967 60788 61516 65464 66248 71344 73647 74529 78156 79092 80262 84168 84669 85176 91182 91728 92274 98196 99372 104208 105456 106379 107016 107653 112892 114562 115934 121576 123032 130928 132496 136773 138411 147294 149058 156312 158184 160524 168336 169338 170352 171843 173901 182364 184548 196392 197561 198744 212758 214032 215306 225784 229124 231868 243152 246064 254007 273546 276822 294588 298116 312624 316368 319137 321048 322959 338676 343686 347802 364728 366899 369096 392784 395122 397488 425516 430612 451568 458248 463736 508014 515529 521703 547092 553644 589176 592683 596232 638274 642096 645918 677352 687372 695604 729456 733798 738192 744653 753571 790244 851032 861224 916496 927472 957411 968877 1016028 1031058 1043406 1094184 1100697 1107288 1178352 1185366 1192464 1276548 1291836 1354704 1374744 1382927 1391208 1467596 1489306 1507142 1580488 1702064 1722448 1778049 1914822 1937754 2032056 2062116 2086812 2188368 2201394 2214576 2233959 2260713 2370732 2553096 2568293 2583672 2749488 2765854 2782416 2935192 2978612 3014284 3160976 3302091 3556098 3829644 3875508 4064112 4124232 4148781 4173624 4402788 4467918 4521426 4741464 5106192 5136586 5167344 5531708 5870384 5957224 6028568 6604182 6701877 6782139 7112196 7659288 7704879 7751016 8248464 8297562 8347248 8805576 8935836 9042852 9482928 9680489 10273172 11063416 11914448 12057136 12446343 13208364 13403754 13564278 14224392 15318576 15409758 15502032 16595124 17611152 17871672 17978051 18085704 19360978 20546344 22126832 23114637 24892686 26416728 26807508 27128556 28448784 29041467 30819516 33190248 35743344 35956102 36171408 38721956 41092688 46229274 49785372 52833456 53615016 53934153 54257112 58082934 61639032 66380496 71912204 77443912 87124401 92458548 99570744 107230032 107868306 108514224 116165868 123278064 125846357 143824408 154887824 161802459 174248802 184917096 199141488 215736612 232331736 251692714 287648816 323604918 348497604 369834192 377539071 431473224 464663472 503385428 647209836 696995208 755078142 862946448 1006770856 1132617213 1294419672 1393990416 1510156284 2013541712 2265234426 2588839344 3020312568 4530468852 6040625136 9060937704 18121875408
• Sum of all divisors σ(n): 64454208000
• Sum of proper divisors (its aliquot sum) s(n): 46332332592
• 18121875408 is an abundant number, because the sum of its proper divisors (46332332592) is greater than itself. Its abundance is 28210457184

Bases of 18121875408

• Binary: 10000111000001001011101111111010000₂
• Hexadecimal: 0x43825DFD0
• Base-36: 8BPAOK0

Squares and roots of 18121875408

• 18121875408 squared (18121875408²) is 328402368303075166464
• 18121875408 cubed (18121875408³) is 5951266802080456549919467917312
• The square root of 18121875408 is 134617.5152348311
• The cube root of 18121875408 is 2626.6429821129

Scales and comparisons

• 18,121,875,408 seconds is equal to 576 years, 11 weeks, 2 days, 22 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,121,875,408 would take you about one thousand, one hundred fifty-two 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 18121875408 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121875408

• 18121875408 backwards is 80457812181
• The number of decimal digits it has is: 11
• The sum of 18121875408's digits is 45
• More coming soon!