638695004540445

Names of 638695004540445

• Cardinal: 638695004540445 can be written as Six hundred thirty-eight trillion, six hundred ninety-five billion, four million, five hundred forty thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 6.38695004540445 × 10¹⁴

Factors of 638695004540445

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3577

Divisors of 638695004540445

• Number of divisors d(n): 320
• Complete list of divisors:
  1 3 5 9 15 27 31 43 45 81 93 129 135 155 215 279 387 405 465 601 645 837 1093 1161 1333 1395 1801 1803 1935 2511 3005 3279 3483 3999 4185 5403 5409 5465 5805 6665 9005 9015 9837 11997 12555 16209 16227 16395 17415 18631 19995 25843 27015 27045 29511 33883 35991 46999 48627 48681 49185 55831 55893 59985 77443 77529 81045 81135 88533 93155 101649 107973 129215 140997 145881 147555 167493 167679 169415 179955 232329 232587 234995 243135 243405 279155 279465 304947 387215 387645 422991 442665 502479 503037 508245 539865 656893 696987 697761 704985 729405 801133 837465 838395 914841 1082401 1161645 1162935 1268973 1456969 1507437 1509111 1524735 1968493 1970679 2090961 2093283 2114955 2400733 2403399 2512395 2515185 2744523 3247203 3284465 3484935 3488805 3806919 4005665 4370907 4522311 4574205 5412005 5905479 5912037 6272883 6344865 7202199 7210197 7284845 7537185 7545555 9741609 9842465 9853395 10454805 10466415 12003665 12016995 13112721 13722615 16236015 17716437 17736111 19034595 20363683 21606597 21630591 21854535 22611555 28246399 29224827 29527395 29560185 31364415 33554431 36010995 36050985 39338163 46543243 48708045 53149311 53208333 61023283 61091049 64819791 64891773 65563605 84645199 84739197 87674481 88582185 88680555 100663293 101818415 108032985 108152955 118014489 139629729 141231995 146124135 159447933 167772155 183069849 183273147 194459373 196690815 232716215 253935597 254217591 265746555 266041665 301989879 305116415 305455245 324098955 324458865 418889187 423225995 423695985 438372405 503316465 549209547 549819441 590072445 698148645 761806791 762652773 797239665 875638369 905969637 915349245 916365735 972296865 1183064293 1256667561 1269677985 1271087955 1442840533 1509949395 1647628641 1649458323 2094445935 2285420373 2287958319 2624001169 2626915107 2717908911 2746047735 2749097205 3549192879 3770002683 3809033955 3813263865 4328521599 4378191845 4529848185 4942885923 5915321465 6283337805 6856261119 7214202665 7872003507 7880745321 8238143205 8247291615 10647578637 11427101865 11439791595 12985564797 13120005845 13134575535 13589544555 17745964395 18850013415 21642607995 23616010521 23642235963 24714429615 31942735911 34281305595 36674993083 38956694391 39360017535 39403726605 50871764599 53237893185 64927823985 70848031563 70926707889 95828207733 110024979249 116870083173 118080052605 118211179815 152615293797 159713679555 183374965415 194783471955 212544094689 254358822995 330074937747 354240157815 354633539445 457845881391 479141038665 550124896245 584350415865 763076468985 990224813241 1062720473445 1373537644173 1577024702569 1650374688735 2289229406955 2970674439723 4120612932519 4731074107707 4951124066205 6867688220865 7885123512845 14193222323121 14853372198615 20603064662595 23655370538535 42579666969363 70966111615605 127739000908089 212898334846815 638695004540445
• Sum of all divisors σ(n): 1213131487991808
• Sum of proper divisors (its aliquot sum) s(n): 574436483451363
• 638695004540445 is a deficient number, because the sum of its proper divisors (574436483451363) is less than itself. Its deficiency is 64258521089082

Bases of 638695004540445

• Binary: 10010001001110001111000100110111011000111000011101₂
• Hexadecimal: 0x244E3C4DD8E1D
• Base-36: 6AECFN34T9

Squares and roots of 638695004540445

• 638695004540445 squared (638695004540445²) is 407931308824919059165640798025
• 638695004540445 cubed (638695004540445³) is 260543689142121349991358567087915308188621125
• The square root of 638695004540445 is 25272415.8825476161
• The cube root of 638695004540445 is 86118.7742552435

Scales and comparisons

• 638,695,004,540,445 seconds is equal to 20,308,525 years, 27 weeks, 4 days, 7 hours, 45 seconds.
• To count from 1 to 638,695,004,540,445 would take you about fifty million, seven hundred seventy-one thousand, three hundred thirteen 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 638695004540445 cubic inches would be around 7176.6 feet tall.

Recreational maths with 638695004540445

• 638695004540445 backwards is 544045400596836
• The number of decimal digits it has is: 15
• The sum of 638695004540445's digits is 63
• More coming soon!