643122678166591401

Names of 643122678166591401

• Cardinal: 643122678166591401 can be written as Six hundred forty-three quadrillion, one hundred twenty-two trillion, six hundred seventy-eight billion, one hundred sixty-six million, five hundred ninety-one thousand, four hundred one.

Scientific notation

• Scientific notation: 6.43122678166591401 × 10¹⁷

Factors of 643122678166591401

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1976

Divisors of 643122678166591401

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 9 41 59 123 177 369 531 1681 1873 2419 3481 5043 5619 7257 10443 15129 16857 21771 31329 76793 99179 110507 142721 205379 230379 297537 331521 428163 616137 691137 892611 994563 1284489 1848411 3148513 3508129 4530787 5851561 6519913 8420539 9445539 10524387 12117361 13592361 17554683 19559739 25261617 28336617 31573161 36352083 40777083 52664049 58679217 75784851 109056249 143833289 185762267 206979611 267316433 345242099 384674867 431499867 496811801 557286801 620938833 801949299 1035726297 1154024601 1294499601 1490435403 1671860403 1862816499 2405847897 3107178891 3462073803 4471306209 5897164849 8486164051 10959973753 12211797049 15771669547 17691494547 20369283841 22695817153 25458492153 32879921259 36635391147 47315008641 53074483641 61107851523 68087451459 76375476459 98639763777 109906173441 141945025923 183323554569 204262354377 347932726091 500683679009 646638451427 720496025891 930528503273 1043798178273 1502051037027 1939915354281 2161488077673 2791585509819 3131394534819 4506153111081 5819746062843 6484464233019 8374756529457 20528030839369 29540337061531 38151668634193 42509265527569 61584092518107 88621011184593 114455005902579 127527796582707 184752277554321 265863033553779 343365017707737 382583389748121 1211153819522771 1742879886630329 3633461458568313 5228639659890987 10900384375704939 15685918979672961 71458075351843489 214374226055530467 643122678166591401
• Sum of all divisors σ(n): 969099080386794357
• Sum of proper divisors (its aliquot sum) s(n): 325976402220202956
• 643122678166591401 is a deficient number, because the sum of its proper divisors (325976402220202956) is less than itself. Its deficiency is 317146275946388445

Bases of 643122678166591401

• Binary: 100011101100110101001010101100011011000111100001011110101001₂
• Hexadecimal: 0x8ECD4AB1B1E17A9
• Base-36: 4VWFYNNWWQ09

Squares and roots of 643122678166591401

• 643122678166591401 squared (643122678166591401²) is 413606779172169099913536450887142801
• 643122678166591401 cubed (643122678166591401³) is 265999899529063347410632401308659770165397890105654201
• 643122678166591401 is a perfect square number. Its square root is 801949299
• The cube root of 643122678166591401 is 863173.1872600223

Scales and comparisons

• 643,122,678,166,591,401 seconds is equal to 20,449,311,856 years, 33 weeks, 2 days, 43 minutes, 21 seconds.
• To count from 1 to 643,122,678,166,591,401 would take you about sixty-one billion, three hundred forty-seven million, nine hundred thirty-five thousand, five hundred sixty-nine 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 643122678166591401 cubic inches would be around 71931.1 feet tall.

Recreational maths with 643122678166591401

• 643122678166591401 backwards is 104195661876221346
• The number of decimal digits it has is: 18
• The sum of 643122678166591401's digits is 72
• More coming soon!