18421638705925

Names of 18421638705925

• Cardinal: 18421638705925 can be written as Eighteen trillion, four hundred twenty-one billion, six hundred thirty-eight million, seven hundred five thousand, nine hundred twenty-five.

Scientific notation

• Scientific notation: 1.8421638705925 × 10¹³

Factors of 18421638705925

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 412

Divisors of 18421638705925

• Number of divisors d(n): 360
• Complete list of divisors:
  1 5 7 13 25 35 49 65 79 91 127 169 175 181 245 325 343 395 455 553 635 637 845 889 905 1027 1183 1225 1267 1651 1715 1975 2275 2353 2401 2765 3175 3185 3871 4225 4445 4459 4525 5135 5915 6223 6335 7189 8255 8281 8575 8869 10033 11557 11765 12005 13351 13825 14299 15925 16471 19355 21463 22225 22295 22987 25675 27097 29575 30589 31115 31213 31675 35945 41275 41405 43561 44345 50165 50323 57785 57967 58825 60025 62083 66755 70231 71495 80899 82355 93457 96775 100093 107315 111475 114935 115297 130429 135485 150241 152945 155575 156065 160909 179725 185887 189679 207025 214123 217805 221725 250825 251615 288925 289835 298831 304927 310415 333775 351155 352261 357475 404495 405769 411775 434581 467285 491617 500465 536575 566293 574675 576485 652145 654199 677425 700651 751205 764725 780325 804545 807079 913003 929435 948395 1051687 1070615 1089025 1126363 1258075 1301209 1449175 1494155 1498861 1524635 1552075 1695577 1755775 1761305 1815973 2022475 2028845 2091817 2172905 2336425 2416531 2458085 2465827 2502325 2831465 2882425 3260725 3270995 3441319 3503255 3756025 3884803 3964051 4022725 4035395 4565015 4579393 4647175 4741975 4904557 5258435 5353075 5631815 5649553 6391021 6506045 7361809 7470775 7494305 7623175 7884541 8477885 8806525 9079865 9108463 10144225 10459085 10492027 10864525 11869039 12082655 12290425 12329135 12711811 14157325 14642719 16354975 16915717 17206595 17516275 19424015 19820255 20176975 22825075 22896965 23607649 24089233 24522785 26292175 27193621 28159075 28247765 31955105 32055751 32530225 34331899 36809045 37471525 39422705 42389425 44737147 45399325 45542315 51532663 52295425 52460135 55191787 59345195 60413275 61645675 63559055 63759241 73213595 73444189 83083273 84578585 86032975 88982677 97120075 99101275 102499033 114484825 118038245 118410019 120446165 122613925 135968105 141238825 159775525 160278755 165253543 171659495 184045225 190355347 197113525 223685735 227711575 257663315 262300675 275958935 296725975 306899437 313160029 317795275 318796205 366067975 367220945 415416365 422892925 444913385 446314687 512495165 581582911 590191225 592050095 602230825 622878739 679840525 717493231 801393775 826267715 828870133 858297475 951776735 1118428675 1156774801 1288316575 1332487429 1379794675 1534497185 1565800145 1593981025 1836104725 2077081825 2148296059 2224566925 2231573435 2562475825 2907914555 2960250475 3114393695 3587466155 4071080377 4131338575 4144350665 4360151173 4758883675 5783874005 5802090931 6662437145 7672485925 7829000725 8097423607 9327412003 10741480295 11157867175 14539572775 15038072413 15571968475 17937330775 20355401885 20721753325 21800755865 28919370025 29010454655 33312185725 40487118035 46637060015 53707401475 56681965249 75190362065 101777009425 105266506891 109003779325 145052273275 202435590175 233185300075 283409826245 375951810325 526332534455 736865548237 1417049131225 2631662672275 3684327741185 18421638705925
• Sum of all divisors σ(n): 29614011248640
• Sum of proper divisors (its aliquot sum) s(n): 11192372542715
• 18421638705925 is a deficient number, because the sum of its proper divisors (11192372542715) is less than itself. Its deficiency is 7229266163210

Bases of 18421638705925

• Binary: 100001100000100011111001110110011001100000101₂
• Hexadecimal: 0x10C11F3B3305
• Base-36: 6J2S81WJP

Squares and roots of 18421638705925

• 18421638705925 squared (18421638705925²) is 339356772611634108630105625
• 18421638705925 cubed (18421638705925³) is 6251507857460267843504289860221063328125
• The square root of 18421638705925 is 4292043.6514468257
• The cube root of 18421638705925 is 26410.4673760111

Scales and comparisons

• 18,421,638,705,925 seconds is equal to 585,751 years, 6 weeks, 4 days, 22 hours, 45 minutes, 25 seconds.
• To count from 1 to 18,421,638,705,925 would take you about one million, four hundred sixty-four thousand, three hundred seventy-seven 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 18421638705925 cubic inches would be around 2200.9 feet tall.

Recreational maths with 18421638705925

• 18421638705925 backwards is 52950783612481
• The number of decimal digits it has is: 14
• The sum of 18421638705925's digits is 61
• More coming soon!