21357279180081

Names of 21357279180081

• Cardinal: 21357279180081 can be written as Twenty-one trillion, three hundred fifty-seven billion, two hundred seventy-nine million, one hundred eighty thousand and eighty-one.

Scientific notation

• Scientific notation: 2.1357279180081 × 10¹³

Factors of 21357279180081

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 709

Divisors of 21357279180081

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 13 27 39 61 117 183 193 351 439 549 579 793 1317 1647 1737 2379 2509 3721 3951 5211 5707 7137 7527 11163 11773 11853 17121 21411 22581 26779 33489 35319 37249 48373 51363 67743 80337 84727 100467 105957 111747 145119 153049 154089 241011 254181 317871 335241 348127 435357 459147 484237 718153 723033 762543 1005723 1044381 1101451 1306071 1377441 1452711 1633519 2154459 2272189 2287629 3133143 3304353 4132323 4358133 4900557 5168347 6463377 6816567 9335989 9399429 9913059 13074399 14701671 15505041 16352311 19390131 20449701 21235747 28007967 29538457 29739177 44105013 46515123 49056933 61349103 63707241 67188511 84023901 88615371 138603529 139545369 147170799 191121723 201565533 212580043 252071703 265846113 315269167 415810587 441512397 573365169 604696599 637740129 797538339 945807501 997490971 1247431761 1801845877 1814089797 1913220387 2837422503 2992472913 3742295283 4098499171 5405537631 5739661161 8512267509 8977418739 12295497513 12967382623 16216612893 26932256217 36886492539 38902147869 48649838679 60846949231 110659477617 116706443607 182540847693 350119330821 547622543079 791010340003 1642867629237 2373031020009 7119093060027 21357279180081
• Sum of all divisors σ(n): 34901788521600
• Sum of proper divisors (its aliquot sum) s(n): 13544509341519
• 21357279180081 is a deficient number, because the sum of its proper divisors (13544509341519) is less than itself. Its deficiency is 7812769838562

Bases of 21357279180081

• Binary: 100110110110010100001000010011111010100110001₂
• Hexadecimal: 0x136CA109F531
• Base-36: 7KJECLFE9

Squares and roots of 21357279180081

• 21357279180081 squared (21357279180081²) is 456133373975921351627166561
• 21357279180081 cubed (21357279180081³) is 9741767811356045707716393145119300471441
• The square root of 21357279180081 is 4621393.6404596611
• The cube root of 21357279180081 is 27744.8240456287

Scales and comparisons

• 21,357,279,180,081 seconds is equal to 679,095 years, 21 weeks, 4 days, 6 hours, 1 minute, 21 seconds.
• To count from 1 to 21,357,279,180,081 would take you about one million, six hundred ninety-seven thousand, seven hundred thirty-eight 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 21357279180081 cubic inches would be around 2312.1 feet tall.

Recreational maths with 21357279180081

• 21357279180081 backwards is 18008197275312
• The number of decimal digits it has is: 14
• The sum of 21357279180081's digits is 54
• More coming soon!