21478348855872

Names of 21478348855872

• Cardinal: 21478348855872 can be written as Twenty-one trillion, four hundred seventy-eight billion, three hundred forty-eight million, eight hundred fifty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1478348855872 × 10¹³

Factors of 21478348855872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 798808

Divisors of 21478348855872

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 64 72 87 96 116 144 174 192 232 261 288 348 464 522 576 696 928 1044 1392 1613 1856 2088 2784 3226 4176 4839 5568 6452 8352 9678 12904 14517 16704 19356 25808 29034 38712 46777 51616 58068 77424 93554 103232 116136 140331 154848 187108 232272 280662 309696 374216 420993 464544 561324 748432 797161 841986 929088 1122648 1496864 1594322 1683972 2245296 2391483 2993728 3188644 3367944 4490592 4782966 6377288 6735888 7174449 8981184 9565932 12754576 13471776 14348898 19131864 23117669 25509152 26943552 28697796 38263728 46235338 51018304 57395592 69353007 76527456 92470676 114791184 138706014 153054912 184941352 208059021 229582368 277412028 369882704 416118042 459164736 554824056 739765408 832236084 1109648112 1285820693 1479530816 1664472168 2219296224 2571641386 3328944336 3857462079 4438592448 5143282772 6657888672 7714924158 10286565544 11572386237 13315777344 15429848316 20573131088 23144772474 30859696632 37288800097 41146262176 46289544948 61719393264 74577600194 82292524352 92579089896 111866400291 123438786528 149155200388 185158179792 223732800582 246877573056 298310400776 335599200873 370316359584 447465601164 596620801552 671198401746 740632719168 894931202328 1193241603104 1342396803492 1789862404656 2386483206208 2684793606984 3579724809312 5369587213968 7159449618624 10739174427936 21478348855872
• Sum of all divisors σ(n): 63726262250040
• Sum of proper divisors (its aliquot sum) s(n): 42247913394168
• 21478348855872 is an abundant number, because the sum of its proper divisors (42247913394168) is greater than itself. Its abundance is 20769564538296

Bases of 21478348855872

• Binary: 100111000100011010001010110101001101001000000₂
• Hexadecimal: 0x1388D15A9A40
• Base-36: 7M30MCR40

Squares and roots of 21478348855872

• 21478348855872 squared (21478348855872²) is 461319469574538051428880384
• 21478348855872 cubed (21478348855872³) is 9908380501527757271530421290464344014848
• The square root of 21478348855872 is 4634473.9567584151
• The cube root of 21478348855872 is 27797.1517085427

Scales and comparisons

• 21,478,348,855,872 seconds is equal to 682,945 years, 2 weeks, 6 days, 15 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,478,348,855,872 would take you about one million, seven hundred seven thousand, three hundred sixty-two 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 21478348855872 cubic inches would be around 2316.4 feet tall.

Recreational maths with 21478348855872

• 21478348855872 backwards is 27855884387412
• 21478348855872 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21478348855872's digits is 72
• More coming soon!