64918308429821

Names of 64918308429821

• Cardinal: 64918308429821 can be written as Sixty-four trillion, nine hundred eighteen billion, three hundred eight million, four hundred twenty-nine thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 6.4918308429821 × 10¹³

Factors of 64918308429821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 524405

Divisors of 64918308429821

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 11 29 71 77 121 203 319 497 781 847 2059 2233 3509 5041 5467 8591 14413 22649 24563 35287 55451 60137 146189 158543 249139 388157 524287 609961 1023323 1608079 1743973 3670009 4269727 5767157 11256553 15204323 17688869 37224377 40370099 63438727 106430261 123822083 167247553 260570639 409468147 444071089 1079506933 1170732871 1839723083 2642930767 2866277029 4504149617 7556548531 11874576263 12878061581 18500515369 29072238437 31529047319 76644992243 83122033841 130620338893 203505669059 319794622807 536514945701 843094914673 914342372251 2238562359649 5901664402711 9274044061403 64918308429821
• Sum of all divisors σ(n): 85567450644480
• Sum of proper divisors (its aliquot sum) s(n): 20649142214659
• 64918308429821 is a deficient number, because the sum of its proper divisors (20649142214659) is less than itself. Its deficiency is 44269166215162

Bases of 64918308429821

• Binary: 1110110000101011111000101101101001111111111101₂
• Hexadecimal: 0x3B0AF8B69FFD
• Base-36: N0F24P4OT

Squares and roots of 64918308429821

• 64918308429821 squared (64918308429821²) is 4214386769389368310482092041
• 64918308429821 cubed (64918308429821³) is 273590860137775919511023756181709911154661
• The square root of 64918308429821 is 8057189.8593629405
• The cube root of 64918308429821 is 40190.4064526341

Scales and comparisons

• 64,918,308,429,821 seconds is equal to 2,064,201 years, 20 weeks, 6 days, 12 hours, 43 minutes, 41 seconds.
• To count from 1 to 64,918,308,429,821 would take you about five million, one hundred sixty thousand, five hundred 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 64918308429821 cubic inches would be around 3349.2 feet tall.

Recreational maths with 64918308429821

• 64918308429821 backwards is 12892480381946
• The number of decimal digits it has is: 14
• The sum of 64918308429821's digits is 65
• More coming soon!