640470825225

Names of 640470825225

• Cardinal: 640470825225 can be written as Six hundred forty billion, four hundred seventy million, eight hundred twenty-five thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 6.40470825225 × 10¹¹

Factors of 640470825225

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 337

Divisors of 640470825225

• Number of divisors d(n): 720
• Complete list of divisors:
  1 3 5 7 9 11 15 17 21 25 27 33 35 45 51 55 61 63 75 77 81 85 99 105 119 135 153 165 175 183 187 189 225 231 233 255 275 289 297 305 315 357 385 405 425 427 459 495 525 549 561 567 595 671 675 693 699 765 825 867 891 915 935 945 1037 1071 1155 1165 1275 1281 1309 1377 1445 1485 1525 1575 1631 1647 1683 1785 1925 2013 2023 2025 2079 2097 2135 2295 2475 2563 2601 2745 2805 2835 2975 3111 3179 3213 3355 3465 3495 3825 3843 3927 3961 4335 4455 4575 4675 4697 4725 4893 4941 5049 5185 5355 5775 5825 6039 6069 6237 6291 6405 6545 6885 7225 7259 7425 7689 7803 8155 8235 8415 8925 9333 9537 9639 10065 10115 10395 10485 10675 11407 11475 11529 11781 11883 12815 13005 13725 14025 14091 14175 14213 14679 15147 15555 15895 16065 16775 17325 17475 17629 17941 18117 18207 18873 19215 19635 19805 21675 21777 22253 22275 23067 23409 23485 24465 24705 25245 25925 26775 27727 27999 28611 30195 30345 31185 31455 32025 32725 34221 34425 34587 35343 35649 36295 38445 39015 40775 41175 42075 42273 42639 43571 44037 46665 47685 48195 50325 50575 51975 52425 52887 53823 54351 54621 57035 57645 58905 59415 64075 65025 65331 66759 67337 69201 70455 71065 73395 75735 77775 79475 79849 80325 83181 83997 85833 88145 89705 90585 91035 94365 96075 98175 99025 99491 102663 106029 106947 108885 111265 115335 117045 117425 122325 123403 123525 126225 126819 127917 130713 132111 138635 139995 143055 150975 151725 155925 156343 157275 158661 161469 163863 171105 172935 176715 178245 181475 192225 193919 195075 195993 200277 202011 207603 211365 213195 217855 220185 233325 238425 239547 240975 241621 249543 257499 264435 269115 271755 273105 285175 288225 294525 297075 298473 304997 307989 320841 326655 333795 336685 346005 352275 355325 366975 370209 378675 380457 383751 392139 399245 415905 419985 429165 440725 448525 452925 455175 469029 471359 471825 475983 484407 497455 513315 530145 534735 544425 556325 576675 581757 585225 587979 600831 606033 617015 634095 639585 653565 660555 693175 699975 715275 718641 724863 740707 748629 781715 793305 807345 819315 855525 864675 883575 891225 895419 914991 923967 969595 979965 1001385 1010055 1038015 1056825 1065975 1089275 1094401 1100925 1110627 1151253 1176417 1197735 1208105 1247715 1287495 1322175 1345575 1357433 1358775 1365525 1407087 1414077 1427949 1453221 1492365 1524985 1539945 1604205 1633275 1668975 1683425 1691347 1730025 1745271 1802493 1818099 1851045 1902285 1918755 1960695 1996225 2079525 2099925 2145825 2155923 2174589 2222121 2245887 2345145 2356795 2379915 2422035 2487275 2566575 2650725 2657831 2673675 2686257 2744973 2908785 2939895 3004155 3030165 3085075 3170475 3197925 3267825 3283203 3302775 3331881 3529251 3593205 3624315 3703535 3743145 3908575 3966525 4036725 4072299 4096575 4107557 4221261 4242231 4477095 4574955 4619835 4847975 4899825 5006925 5050275 5074041 5184949 5190075 5235813 5454297 5472005 5553135 5756265 5882085 5988675 6040525 6238575 6437475 6467769 6523767 6666363 6787165 7035435 7070385 7139745 7266105 7461825 7624925 7699725 7973493 8021025 8058771 8234919 8456735 8726355 9012465 9090495 9255225 9511425 9593775 9803475 9849609 9995643 10779615 10872945 11110605 11229435 11725725 11783975 11899575 12110175 12216897 12322671 12663783 12726693 13289155 13431285 13724865 14543925 14699475 15020775 15150825 15222123 15554847 15707439 16416015 16659405 17646255 17966025 18121575 18517675 18604817 18715725 19571301 19999089 20361495 20537785 21106305 21211155 22385475 22874775 23099175 23920479 24704757 25370205 25924745 26179065 27271485 27360025 27765675 28752899 28781325 29410425 29548827 32338845 32618835 33331815 33935825 35177175 35351925 35698725 36330525 36650691 36968013 38180079 39867465 40293855 41174595 42283675 43631775 45062325 45183127 45452475 45666369 46664541 49248045 49978215 53898075 54364725 55553025 55814451 56147175 59997267 61084485 61613355 63318915 63633465 66445775 67156425 68624325 71761437 76110615 77774235 78537195 82080075 83297025 86258697 88231275 88646481 93024085 97856505 99995445 101807475 102688925 105531525 106055775 109952073 110904039 119602395 123523785 126851025 129623725 130895325 135549381 136357425 136999107 139993623 143764495 147744135 161694225 163094175 166659075 167443353 183253455 184840065 190900395 199337325 201469275 205872975 215284311 225915635 228331845 233322705 246240225 249891075 258776091 279072255 299986335 305422425 308066775 316281889 316594575 318167325 332712117 358807185 380553075 388871175 392685975 406648143 419980869 431293485 443232405 465120425 489282525 499977225 502330059 549760365 554520195 598011975 617618925 677746905 684995535 699968115 718822475 738720675 776328273 837216765 916267275 924200325 948845667 954501975 1076421555 1129578175 1141659225 1166613525 1219944429 1293880455 1395361275 1499931675 1506990177 1581409445 1663560585 1794035925 2033240715 2099904345 2156467425 2216162025 2328984819 2511650295 2748801825 2772600975 2846537001 3388734525 3424977675 3499840575 3659833287 3881641365 4186083825 4744228335 5382107775 6099722145 6469402275 7534950885 7907047225 8317802925 8539611003 10166203575 10499521725 11644924095 12558251475 14232685005 18299166435 19408206825 23721141675 25618833009 30498610725 37674754425 42698055015 58224620475 71163425025 91495832175 128094165045 213490275075 640470825225
• Sum of all divisors σ(n): 1603851739776
• Sum of proper divisors (its aliquot sum) s(n): 963380914551
• 640470825225 is an abundant number, because the sum of its proper divisors (963380914551) is greater than itself. Its abundance is 322910089326

Bases of 640470825225

• Binary: 1001010100011111000010010011100100001001₂
• Hexadecimal: 0x951F093909
• Base-36: 8687SJK9

Squares and roots of 640470825225

• 640470825225 squared (640470825225²) is 410202877964392496300625
• 640470825225 cubed (640470825225³) is 262722975759524430271459053433265625
• The square root of 640470825225 is 800294.2116653099
• The cube root of 640470825225 is 8619.8514967023

Scales and comparisons

• 640,470,825,225 seconds is equal to 20,364 years, 51 weeks, 3 days, 18 hours, 33 minutes, 45 seconds.
• To count from 1 to 640,470,825,225 would take you about forty thousand, seven hundred twenty-nine 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 640470825225 cubic inches would be around 718.3 feet tall.

Recreational maths with 640470825225

• 640470825225 backwards is 522528074046
• 640470825225 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640470825225's digits is 45
• More coming soon!