642730907025

Names of 642730907025

• Cardinal: 642730907025 can be written as Six hundred forty-two billion, seven hundred thirty million, nine hundred seven thousand and twenty-five.

Scientific notation

• Scientific notation: 6.42730907025 × 10¹¹

Factors of 642730907025

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 153

Divisors of 642730907025

• Number of divisors d(n): 243
• Complete list of divisors:
  1 3 5 9 15 19 25 29 45 57 75 87 95 97 145 171 225 261 285 291 361 435 475 485 551 725 841 855 873 1083 1305 1425 1455 1653 1805 1843 2175 2425 2523 2755 2813 3249 4205 4275 4365 4959 5415 5529 6525 7275 7569 8265 8439 9025 9215 9409 10469 12615 13775 14065 15979 16245 16587 21025 21825 24795 25317 27075 27645 28227 31407 35017 37845 41325 42195 46075 47045 47937 52345 53447 63075 70325 79895 81225 81577 82935 84681 94221 105051 123975 126585 138225 141135 143811 157035 160341 175085 178771 189225 210975 235225 239685 244731 261725 267235 272861 303601 315153 399475 407885 414675 423405 471105 481023 525255 536313 632925 705675 719055 734193 785175 801705 818583 875425 893855 910803 1015493 1198425 1223655 1336175 1364305 1518005 1549963 1575765 1608939 2039425 2117025 2355525 2405115 2455749 2626275 2681565 2732409 3046479 3396649 3595275 3670965 4008525 4092915 4469275 4554015 4649889 5077465 5184359 6118275 6821525 7590025 7749815 7878825 7912969 8044695 9139437 10189947 12025575 12278745 13407825 13662045 13949667 15232395 15553077 16983245 18354825 20464575 22770075 23249445 23738907 25387325 25921795 29449297 30569841 38749075 39564845 40223475 45697185 46659231 50949735 61393725 68310225 69748335 71216721 76161975 77765385 84916225 88347891 98502821 116247225 118694535 129608975 147246485 150346411 152849205 197824225 228485925 233296155 254748675 265043673 295508463 348741675 356083605 388826925 441739455 451039233 492514105 593472675 736232425 751732055 764246025 886525389 1166480775 1325218365 1353117699 1477542315 1780418025 2208697275 2255196165 2462570525 2856581809 3758660275 4432626945 6626091825 6765588495 7387711575 8569745427 11275980825 14282909045 22163134725 25709236281 33827942475 42848727135 71414545225 128546181405 214243635675 642730907025
• Sum of all divisors σ(n): 1271427705171
• Sum of proper divisors (its aliquot sum) s(n): 628696798146
• 642730907025 is a deficient number, because the sum of its proper divisors (628696798146) is less than itself. Its deficiency is 14034108879

Bases of 642730907025

• Binary: 1001010110100101101111110101010110010001₂
• Hexadecimal: 0x95A5BF5591
• Base-36: 879LDXU9

Squares and roots of 642730907025

• 642730907025 squared (642730907025²) is 413103018845179194350625
• 642730907025 cubed (642730907025³) is 265514077997127691633635962125640625
• 642730907025 is a perfect square number. Its square root is 801705
• The cube root of 642730907025 is 8629.9787854281

Scales and comparisons

• 642,730,907,025 seconds is equal to 20,436 years, 44 weeks, 3 days, 3 hours, 3 minutes, 45 seconds.
• To count from 1 to 642,730,907,025 would take you about forty thousand, eight hundred seventy-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 642730907025 cubic inches would be around 719.2 feet tall.

Recreational maths with 642730907025

• 642730907025 backwards is 520709037246
• 642730907025 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 642730907025's digits is 45
• More coming soon!