642668371002875

Names of 642668371002875

• Cardinal: 642668371002875 can be written as Six hundred forty-two trillion, six hundred sixty-eight billion, three hundred seventy-one million, two thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 6.42668371002875 × 10¹⁴

Factors of 642668371002875

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 844

Divisors of 642668371002875

• Number of divisors d(n): 144
• Complete list of divisors:
  1 5 7 25 35 49 125 175 191 245 343 641 875 955 1225 1337 1715 3205 4487 4775 6125 6685 8575 9359 16025 22435 23875 31409 33425 36481 42875 46795 65513 80125 112175 122431 157045 167125 182405 219863 233975 255367 327565 410881 560875 612155 785225 857017 912025 1099315 1169875 1276835 1637825 1787569 2054405 2876167 3060775 3926125 4285085 4560125 5496575 5999119 6384175 8189125 8937845 10272025 12512983 14380835 15303875 20133169 21425425 23384321 27482875 29995595 31920875 41993833 44689225 51360125 62564915 71904175 78478271 100665845 107127125 116921605 140932183 149977975 163690247 209969165 223446125 312824575 359520875 392391355 503329225 549347897 584608025 704660915 749889875 818451235 1049845825 1145831729 1564122875 1961956775 2516646125 2746739485 2923040125 3523304575 3845435279 4092256175 5249229125 5729158645 8020822103 9809783875 13733697425 14989349761 17616522875 19227176395 20461280875 26918046953 28645793225 40104110515 68668487125 74946748805 96135881975 104925448327 134590234765 143228966125 200520552575 374733744025 480679409875 524627241635 672951173825 734478138289 1002602762875 1873668720125 2623136208175 3364755869125 3672390691445 5141346968023 13115681040875 18361953457225 25706734840115 91809767286125 128533674200575 642668371002875
• Sum of all divisors σ(n): 941727257889600
• Sum of proper divisors (its aliquot sum) s(n): 299058886886725
• 642668371002875 is a deficient number, because the sum of its proper divisors (299058886886725) is less than itself. Its deficiency is 343609484116150

Bases of 642668371002875

• Binary: 10010010001000000011100011111101100100010111111011₂
• Hexadecimal: 0x24880E3F645FB
• Base-36: 6BT1RUW0SB

Squares and roots of 642668371002875

• 642668371002875 squared (642668371002875²) is 413022635087488984133258265625
• 642668371002875 cubed (642668371002875³) is 265436584078991427989242467320887164388671875
• The square root of 642668371002875 is 25350904.7373634181
• The cube root of 642668371002875 is 86296.9888495829

Scales and comparisons

• 642,668,371,002,875 seconds is equal to 20,434,866 years, 15 weeks, 2 days, 1 hour, 14 minutes, 35 seconds.
• To count from 1 to 642,668,371,002,875 would take you about fifty-one million, eighty-seven thousand, one hundred sixty-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 642668371002875 cubic inches would be around 7191.4 feet tall.

Recreational maths with 642668371002875

• 642668371002875 backwards is 578200173866246
• The number of decimal digits it has is: 15
• The sum of 642668371002875's digits is 65
• More coming soon!