18409805172

Names of 18409805172

• Cardinal: 18409805172 can be written as Eighteen billion, four hundred nine million, eight hundred five thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.8409805172 × 10¹⁰

Factors of 18409805172

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 105

Divisors of 18409805172

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 9 11 12 17 18 22 27 29 33 34 36 43 44 51 54 58 66 68 86 87 99 102 108 116 129 132 153 172 174 187 198 204 258 261 289 297 306 319 348 374 387 396 459 473 493 516 522 561 578 594 612 638 731 748 774 783 867 918 946 957 986 1044 1122 1156 1161 1188 1247 1276 1419 1462 1479 1548 1566 1683 1734 1836 1849 1892 1914 1972 2193 2244 2322 2494 2601 2838 2871 2924 2958 3132 3179 3366 3468 3698 3741 3828 4257 4386 4437 4644 4988 5049 5202 5423 5547 5676 5742 5916 6358 6579 6732 7396 7482 7803 8041 8381 8514 8613 8772 8874 9537 10098 10404 10846 11094 11223 11484 12427 12716 12771 13158 13311 13717 14964 15606 16082 16269 16641 16762 17028 17226 17748 19074 19737 20196 20339 21199 21692 22188 22446 24123 24854 25143 25542 26316 26622 27434 28611 31212 31433 32164 32538 33282 33524 33669 34452 37281 38148 39474 40678 41151 42398 44892 48246 48807 49708 49923 50286 51084 53244 53621 54868 57222 61017 62866 63597 65076 66564 67338 72369 74562 75429 78948 81356 82302 84796 85833 92191 94299 96492 97614 99846 100572 107242 111843 114444 122034 123453 125732 127194 134676 136697 144738 146421 149124 150858 160863 164604 171666 183051 184382 188598 190791 195228 199692 214484 217107 223686 226287 233189 244068 246906 254388 273394 276573 282897 289476 292842 301716 321726 335529 343332 345763 360383 366102 368764 370359 377196 381582 410091 434214 447372 452574 466378 482589 493812 534361 546788 549153 553146 565794 572373 585684 589831 643452 671058 691526 699567 720766 732204 740718 763164 820182 829719 848691 868428 905148 911557 932756 965178 1037289 1068722 1081149 1098306 1106292 1131588 1144746 1179662 1230273 1342116 1383052 1399134 1441532 1447767 1481436 1603083 1640364 1659438 1697382 1769493 1823114 1930356 2074578 2098701 2137444 2162298 2196612 2289492 2359324 2460546 2489157 2734671 2798268 2895534 3111867 3206166 3243447 3318876 3394764 3538986 3646228 3690819 3964213 4149156 4197402 4324596 4809249 4921092 4978314 5308479 5469342 5791068 5877971 6223734 6296103 6412332 6486894 7077972 7381638 7928426 8204013 8394804 9335601 9618498 9730341 9956628 10027127 10616958 10938684 11755942 11892639 12447468 12592206 12973788 14427747 14763276 15496469 15856852 15925437 16408026 17633913 18671202 19236996 19460682 20054254 21233916 23511884 23785278 24612039 25184412 28855494 30081381 30992938 31850874 32816052 35267826 35677917 37342404 38921364 40108508 46489407 47570556 49224078 52901739 57710988 60162762 61985876 63701748 70535652 71355834 90244143 92978814 98448156 105803478 107033751 120325524 139468221 142711668 158705217 170461159 180488286 185957628 211606956 214067502 270732429 278936442 317410434 340922318 360976572 418404663 428135004 511383477 541464858 557872884 634820868 681844636 836809326 1022766954 1082929716 1534150431 1673618652 2045533908 3068300862 4602451293 6136601724 9204902586 18409805172
• Sum of all divisors σ(n): 58580020800
• Sum of proper divisors (its aliquot sum) s(n): 40170215628
• 18409805172 is an abundant number, because the sum of its proper divisors (40170215628) is greater than itself. Its abundance is 21760410456

Bases of 18409805172

• Binary: 10001001001010011110101010101110100₂
• Hexadecimal: 0x4494F5574
• Base-36: 8GGQ0L0

Squares and roots of 18409805172

• 18409805172 squared (18409805172²) is 338920926470997949584
• 18409805172 cubed (18409805172³) is 6239468225044809760252918448448
• The square root of 18409805172 is 135682.7371923193
• The cube root of 18409805172 is 2640.4811055013

Scales and comparisons

• 18,409,805,172 seconds is equal to 585 years, 19 weeks, 3 days, 10 hours, 46 minutes, 12 seconds.
• To count from 1 to 18,409,805,172 would take you about one thousand, one hundred seventy 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 18409805172 cubic inches would be around 220 feet tall.

Recreational maths with 18409805172

• 18409805172 backwards is 27150890481
• The number of decimal digits it has is: 11
• The sum of 18409805172's digits is 45
• More coming soon!