389439460740421

Names of 389439460740421

• Cardinal: 389439460740421 can be written as Three hundred eighty-nine trillion, four hundred thirty-nine billion, four hundred sixty million, seven hundred forty thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 3.89439460740421 × 10¹⁴

Factors of 389439460740421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6203

Divisors of 389439460740421

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 13 31 61 91 217 403 427 793 1891 2821 3721 5551 6091 13237 24583 26047 42637 48373 79183 115351 172081 188821 338611 371551 554281 807457 1321747 1499563 2454673 2600857 4830163 10496941 11518081 17182711 22664611 33811141 37100281 80626567 149735053 158652277 259701967 294639943 482303653 702602941 1048145371 1150108711 2062479601 2263117141 3376125571 4918220587 8050760977 9133838233 14951413243 15841819987 29420522833 63936867631 70156631371 104659892701 138050145601 205943659831 491096419597 912036207823 966351019207 1794651892813 4279554513631 6384253454761 12562563249691 29956881595417 55634208677203 389439460740421
• Sum of all divisors σ(n): 503098298067456
• Sum of proper divisors (its aliquot sum) s(n): 113658837327035
• 389439460740421 is a deficient number, because the sum of its proper divisors (113658837327035) is less than itself. Its deficiency is 275780623413386

Bases of 389439460740421

• Binary: 1011000100011000101110000101110000000110101000101₂
• Hexadecimal: 0x1623170B80D45
• Base-36: 3U1M0NW951

Squares and roots of 389439460740421

• 389439460740421 squared (389439460740421²) is 151663093581789909373543257241
• 389439460740421 cubed (389439460740421³) is 59063593378716267552804090874844401929638461
• The square root of 389439460740421 is 19734220.5506176757
• The cube root of 389439460740421 is 73026.4157068915

Scales and comparisons

• 389,439,460,740,421 seconds is equal to 12,382,970 years, 12 weeks, 1 day, 23 hours, 27 minutes, 1 second.
• To count from 1 to 389,439,460,740,421 would take you about thirty million, nine hundred fifty-seven thousand, four hundred twenty-five 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 389439460740421 cubic inches would be around 6085.5 feet tall.

Recreational maths with 389439460740421

• 389439460740421 backwards is 124047064934983
• The number of decimal digits it has is: 15
• The sum of 389439460740421's digits is 64
• More coming soon!