18620434872

Names of 18620434872

• Cardinal: 18620434872 can be written as Eighteen billion, six hundred twenty million, four hundred thirty-four thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8620434872 × 10¹⁰

Factors of 18620434872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 194

Divisors of 18620434872

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 19 24 26 27 36 38 39 52 54 57 72 76 78 81 104 108 114 117 152 156 157 162 169 171 216 228 234 243 247 312 314 324 338 342 351 361 456 468 471 486 494 507 513 628 648 676 684 702 722 741 936 942 972 988 1014 1026 1053 1083 1256 1352 1368 1404 1413 1444 1482 1521 1539 1884 1944 1976 2028 2041 2052 2106 2166 2223 2808 2826 2888 2964 2983 3042 3078 3159 3211 3249 3768 4056 4082 4104 4212 4239 4332 4446 4563 4617 4693 5652 5928 5966 6084 6123 6156 6318 6422 6498 6669 8164 8424 8478 8664 8892 8949 9126 9234 9386 9633 9747 11304 11932 12168 12246 12312 12636 12717 12844 12996 13338 13689 14079 16328 16956 17784 17898 18252 18369 18468 18772 19266 19494 20007 23864 24492 25272 25434 25688 25992 26533 26676 26847 27378 28158 28899 29241 33912 35796 36504 36738 36936 37544 38151 38532 38779 38988 40014 41067 42237 48984 50868 53066 53352 53694 54756 55107 56316 56677 57798 58482 60021 61009 71592 73476 76302 77064 77558 77976 79599 80028 80541 82134 84474 86697 87723 101736 106132 107388 109512 110214 112632 113354 115596 116337 116964 120042 122018 126711 146952 152604 155116 159198 160056 161082 164268 165321 168948 170031 173394 175446 183027 212264 214776 220428 226708 231192 232674 233928 238797 240084 241623 244036 253422 260091 305208 310232 318396 322164 328536 330642 337896 340062 346788 349011 350892 366054 380133 440856 453416 465348 477594 480168 483246 488072 495963 504127 506844 510093 520182 549081 636792 644328 661284 680124 693576 698022 701784 716391 724869 732108 736801 760266 780273 930696 955188 966492 991926 1008254 1013688 1020186 1040364 1047033 1098162 1140399 1322568 1360248 1396044 1432782 1449738 1464216 1473602 1512381 1520532 1530279 1560546 1647243 1910376 1932984 1983852 2016508 2040372 2080728 2094066 2149173 2196324 2210403 2280798 2792088 2865564 2899476 2947204 3024762 3041064 3060558 3121092 3141099 3294486 3967704 4033016 4080744 4188132 4298346 4392648 4420806 4537143 4561596 4590837 4941729 5731128 5798952 5894408 6049524 6121116 6242184 6282198 6447519 6588972 6631209 8376264 8596692 8841612 9074286 9123192 9181674 9423297 9578413 9883458 12099048 12242232 12564396 12895038 13177944 13262418 13611429 13772511 14825187 17193384 17683224 18148572 18363348 18846594 19156826 19766916 19893627 25128792 25790076 26524836 27222858 27545022 28735239 29650374 36297144 36726696 37693188 38313652 39533832 39787254 40834287 51580152 53049672 54445716 55090044 57470478 59300748 59680881 75386376 76627304 79574508 81668574 86205717 108891432 110180088 114940956 118601496 119361762 122502861 159149016 163337148 172411434 179042643 229881912 238723524 245005722 258617151 326674296 344822868 358085286 477447048 490011444 517234302 689645736 716170572 775851453 980022888 1034468604 1432341144 1551702906 2068937208 2327554359 3103405812 4655108718 6206811624 9310217436 18620434872
• Sum of all divisors σ(n): 60148637640
• Sum of proper divisors (its aliquot sum) s(n): 41528202768
• 18620434872 is an abundant number, because the sum of its proper divisors (41528202768) is greater than itself. Its abundance is 22907767896

Bases of 18620434872

• Binary: 10001010101110111010100100110111000₂
• Hexadecimal: 0x455DD49B8
• Base-36: 8JY4JI0

Squares and roots of 18620434872

• 18620434872 squared (18620434872²) is 346720594822393656384
• 18620434872 cubed (18620434872³) is 6456088254671481485844219022848
• The square root of 18620434872 is 136456.7142796571
• The cube root of 18620434872 is 2650.5130072203

Scales and comparisons

• 18,620,434,872 seconds is equal to 592 years, 3 weeks, 5 days, 7 hours, 1 minute, 12 seconds.
• To count from 1 to 18,620,434,872 would take you about one thousand, one hundred eighty-four 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 18620434872 cubic inches would be around 220.9 feet tall.

Recreational maths with 18620434872

• 18620434872 backwards is 27843402681
• The number of decimal digits it has is: 11
• The sum of 18620434872's digits is 45
• More coming soon!