21136185452421

Names of 21136185452421

• Cardinal: 21136185452421 can be written as Twenty-one trillion, one hundred thirty-six billion, one hundred eighty-five million, four hundred fifty-two thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 2.1136185452421 × 10¹³

Factors of 21136185452421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 757

Divisors of 21136185452421

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 9 13 17 27 39 51 71 81 117 153 169 213 221 243 351 459 507 639 653 663 923 1053 1207 1377 1521 1917 1959 1989 2769 2873 3159 3621 4131 4563 5751 5877 5967 8307 8489 8619 10863 11101 11999 13689 15691 17253 17631 17901 24921 25467 25857 32589 33303 35997 41067 46363 47073 52893 53703 74763 76401 77571 97767 99909 107991 110357 139089 141219 144313 158679 203983 224289 229203 232713 293301 299727 323973 331071 417267 423657 426409 432939 602719 611949 687609 698139 788171 899181 971919 993213 1251801 1270971 1279227 1298817 1808157 1835847 1876069 2062827 2364513 2697543 2915757 2979639 3755403 3812913 3837681 3896451 5424471 5507541 5543317 5628207 7093539 7248953 7835347 8938917 10246223 11266209 11513043 11689353 16273413 16522623 16629951 16884621 21280617 21746859 23506041 26816751 30275039 30738669 34539129 35068059 48820239 49567869 49889853 50653863 63841851 65240577 70518123 72063121 90825117 92216007 94236389 103617387 133200899 146460717 149669559 151961589 191525553 195721731 211554369 216189363 272475351 276648021 282709167 393575507 399602697 449008677 455884767 514675663 587165193 634663107 648568089 817426053 829944063 848127501 1180726521 1198808091 1225073057 1347026031 1544026989 1761495579 1903989321 1945704267 2452278159 2489832189 2544382503 3542179563 3596424273 3675219171 4632080967 5116481591 5837112801 6690783619 7356834477 7633147509 10626538689 10789272819 11025657513 13896242901 15349444773 17511338403 20072350857 22899442527 31879616067 32367818457 33076972539 41688728703 46048334319 60217052571 86980187047 95638848201 99230917617 125066186109 138145002957 180651157713 260940561141 297692752851 414435008871 541953473139 782821683423 1243305026613 1625860419417 2348465050269 7045395150807 21136185452421
• Sum of all divisors σ(n): 36867986640576
• Sum of proper divisors (its aliquot sum) s(n): 15731801188155
• 21136185452421 is a deficient number, because the sum of its proper divisors (15731801188155) is less than itself. Its deficiency is 5404384264266

Bases of 21136185452421

• Binary: 100110011100100100110110100110110011110000101₂
• Hexadecimal: 0x133926D36785
• Base-36: 7HPTV3JB9

Squares and roots of 21136185452421

• 21136185452421 squared (21136185452421²) is 446738335479133112454761241
• 21136185452421 cubed (21136185452421³) is 9442344307392825580274519590501120414461
• The square root of 21136185452421 is 4597410.7334912985
• The cube root of 21136185452421 is 27648.7522487477

Scales and comparisons

• 21,136,185,452,421 seconds is equal to 672,065 years, 16 weeks, 4 days, 1 hour, 40 minutes, 21 seconds.
• To count from 1 to 21,136,185,452,421 would take you about one million, six hundred eighty thousand, one hundred sixty-three 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 21136185452421 cubic inches would be around 2304.1 feet tall.

Recreational maths with 21136185452421

• 21136185452421 backwards is 12425458163112
• The number of decimal digits it has is: 14
• The sum of 21136185452421's digits is 45
• More coming soon!