18706128672

Names of 18706128672

• Cardinal: 18706128672 can be written as Eighteen billion, seven hundred six million, one hundred twenty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8706128672 × 10¹⁰

Factors of 18706128672

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 454

Divisors of 18706128672

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 19 21 22 24 28 32 33 38 42 44 48 49 53 56 57 66 76 77 84 88 96 98 106 112 114 132 133 147 152 154 159 168 176 196 209 212 224 228 231 264 266 294 304 308 318 336 352 359 371 392 399 418 424 456 462 528 532 539 583 588 608 616 627 636 672 718 742 784 798 836 848 912 924 931 1007 1056 1064 1077 1078 1113 1166 1176 1232 1254 1272 1436 1463 1484 1568 1596 1617 1672 1696 1749 1824 1848 1862 2014 2128 2154 2156 2226 2332 2352 2464 2508 2513 2544 2597 2793 2872 2926 2968 3021 3192 3234 3344 3498 3696 3724 3949 4028 4081 4256 4308 4312 4389 4452 4664 4704 5016 5026 5088 5194 5586 5744 5852 5936 6042 6384 6468 6688 6821 6996 7049 7392 7448 7539 7791 7898 8056 8162 8616 8624 8778 8904 9328 10032 10052 10241 10388 11077 11172 11488 11704 11847 11872 12084 12243 12768 12936 13642 13992 14098 14896 15078 15582 15796 16112 16324 17232 17248 17556 17591 17808 18656 19027 20064 20104 20463 20482 20776 21147 22154 22344 23408 23694 24168 24486 25872 27284 27643 27984 28196 28567 29792 30156 30723 31164 31592 32224 32648 33231 34464 35112 35182 35616 38054 40208 40926 40964 41552 42294 44308 44688 46816 47388 47747 48336 48972 49343 51744 52773 54568 55286 55968 56392 57081 57134 60312 61446 62328 63184 65296 66462 70224 70364 75031 76108 77539 80416 81852 81928 82929 83104 84588 85701 88616 89376 94776 95494 96672 97944 98686 105546 109136 110572 112784 114162 114268 120624 122892 124656 126368 130592 132924 133189 140448 140728 143241 148029 150062 152216 155078 163704 163856 165858 169176 171402 177232 189552 190988 193501 195888 197372 209297 211092 218272 221144 225093 225568 228324 228536 232617 241248 245784 249312 265848 266378 281456 286482 296058 300124 304432 310156 327408 327712 331716 334229 338352 342804 354464 361513 379104 381976 387002 391776 394744 399567 418594 422184 442288 450186 456648 457072 465234 491568 525217 531696 532756 542773 562912 572964 580503 592116 600248 608864 620312 627891 654816 663432 668458 676704 685608 723026 763952 774004 789488 799134 837188 844368 884576 900372 913296 914144 930468 932323 983136 1002687 1050434 1063392 1065512 1084539 1085546 1145928 1161006 1184232 1200496 1240624 1255782 1326864 1336916 1371216 1446052 1465079 1527904 1548008 1575651 1578976 1598268 1628319 1674376 1688736 1800744 1826592 1860936 1864646 2005374 2100868 2131024 2169078 2171092 2291856 2322012 2368464 2400992 2481248 2511564 2530591 2653728 2673832 2742432 2796969 2892104 2930158 3096016 3151302 3196536 3256638 3348752 3601488 3676519 3721872 3729292 3976643 4010748 4201736 4262048 4338156 4342184 4395237 4583712 4644024 4736928 5023128 5061182 5347664 5593938 5784208 5860316 6192032 6302604 6393072 6513276 6697504 7202976 7353038 7443744 7458584 7591773 7953286 8021496 8403472 8676312 8684368 8790474 9288048 10046256 10122364 10255553 10695328 11029557 11187876 11568416 11720632 11929929 12605208 12786144 13026552 14706076 14917168 15183546 15906572 16042992 16806944 17352624 17368736 17580948 17714137 18576096 20092512 20244728 20511106 22059114 22375752 23441264 23859858 25210416 26053104 27836501 29412152 29834336 30367092 30766659 31813144 32085984 34705248 35161896 35428274 40489456 41022212 44118228 44751504 46882528 47719716 50420832 52106208 53142411 55673002 58824304 60734184 61533318 63626288 70323792 70856548 80978912 82044424 83509503 88236456 89503008 95439432 106284822 111346004 117648608 121468368 123066636 127252576 140647584 141713096 164088848 167019006 176472912 190878864 194855507 212569644 222692008 242936736 246133272 283426192 328177696 334038012 352945824 381757728 389711014 425139288 445384016 492266544 566852384 584566521 668076024 779422028 850278576 890768032 984533088 1169133042 1336152048 1558844056 1700557152 2338266084 2672304096 3117688112 4676532168 6235376224 9353064336 18706128672
• Sum of all divisors σ(n): 67016678400
• Sum of proper divisors (its aliquot sum) s(n): 48310549728
• 18706128672 is an abundant number, because the sum of its proper divisors (48310549728) is greater than itself. Its abundance is 29604421056

Bases of 18706128672

• Binary: 10001011010111110001101111100100000₂
• Hexadecimal: 0x45AF8DF20
• Base-36: 8LD599C

Squares and roots of 18706128672

• 18706128672 squared (18706128672²) is 349919249893420483584
• 18706128672 cubed (18706128672³) is 6545634513316045852122767720448
• The square root of 18706128672 is 136770.3501201923
• The cube root of 18706128672 is 2654.5727940355

Scales and comparisons

• 18,706,128,672 seconds is equal to 594 years, 41 weeks, 3 days, 2 hours, 51 minutes, 12 seconds.
• To count from 1 to 18,706,128,672 would take you about one thousand, one hundred eighty-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 18706128672 cubic inches would be around 221.2 feet tall.

Recreational maths with 18706128672

• 18706128672 backwards is 27682160781
• 18706128672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18706128672's digits is 48
• More coming soon!