664145489920

Names of 664145489920

• Cardinal: 664145489920 can be written as Six hundred sixty-four billion, one hundred forty-five million, four hundred eighty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.6414548992 × 10¹¹

Factors of 664145489920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 136

Divisors of 664145489920

• Number of divisors d(n): 468
• Complete list of divisors:
  1 2 4 5 8 10 11 16 17 20 22 32 34 40 44 55 64 68 80 85 88 101 110 128 136 160 170 176 187 202 220 256 272 289 320 340 352 374 404 440 505 512 544 578 640 680 704 748 808 880 935 1010 1024 1088 1111 1156 1280 1360 1408 1445 1496 1616 1717 1760 1870 2020 2048 2176 2222 2312 2560 2720 2816 2890 2992 3179 3232 3434 3520 3740 4040 4096 4352 4444 4624 5120 5440 5555 5632 5780 5984 6358 6464 6868 7040 7480 8080 8585 8704 8888 9248 10201 10240 10880 11110 11264 11560 11968 12716 12928 13736 14080 14960 15895 16160 17170 17408 17776 18496 18887 20402 20480 21760 22220 22528 23120 23936 25432 25856 27472 28160 29189 29920 31790 32320 34340 34816 35552 36992 37774 40804 43520 44440 45056 46240 47872 50864 51005 51712 54944 56320 58378 59840 63580 64640 68680 69632 71104 73984 75548 81608 87040 88880 92480 94435 95744 101728 102010 103424 109888 112211 112640 116756 119680 127160 129280 137360 142208 145945 147968 151096 163216 173417 174080 177760 184960 188870 191488 203456 204020 206848 219776 224422 225280 233512 239360 254320 258560 274720 284416 291890 295936 302192 321079 326432 346834 348160 355520 369920 377740 382976 406912 408040 413696 439552 448844 467024 478720 508640 517120 549440 561055 568832 583780 591872 604384 642158 652864 693668 711040 739840 755480 765952 813824 816080 867085 879104 897688 934048 957440 1017280 1034240 1098880 1122110 1137664 1167560 1183744 1208768 1284316 1305728 1387336 1422080 1479680 1510960 1605395 1627648 1632160 1734170 1758208 1795376 1868096 1907587 1914880 2034560 2068480 2197760 2244220 2275328 2335120 2417536 2568632 2611456 2774672 2844160 2948089 2959360 3021920 3210790 3255296 3264320 3468340 3516416 3590752 3736192 3815174 3829760 4069120 4395520 4488440 4550656 4670240 4835072 5137264 5222912 5549344 5688320 5896178 5918720 6043840 6421580 6510592 6528640 6936680 7032832 7181504 7472384 7630348 8138240 8791040 8976880 9340480 9537935 9670144 10274528 10445824 11098688 11376640 11792356 12087680 12843160 13021184 13057280 13873360 14363008 14740445 14944768 15260696 16276480 17582080 17953760 18680960 19075870 19340288 20549056 20891648 22197376 22753280 23584712 24175360 25686320 26114560 27746720 28726016 29480890 29889536 30521392 32428979 32552960 35164160 35907520 37361920 38151740 38680576 41098112 41783296 44394752 47169424 48350720 51372640 52229120 55493440 57452032 58961780 59779072 61042784 64857958 65105920 71815040 74723840 76303480 77361152 82196224 88789504 94338848 96701440 102745280 104458240 110986880 114904064 117923560 119558144 122085568 129715916 143630080 149447680 152606960 162144895 164392448 177579008 188677696 193402880 205490560 208916480 221973760 229808128 235847120 244171136 259431832 287260160 298895360 305213920 324289790 328784896 355158016 377355392 386805760 410981120 443947520 459616256 471694240 488342272 518863664 574520320 597790720 610427840 648579580 657569792 710316032 754710784 821962240 887895040 943388480 976684544 1037727328 1149040640 1220855680 1297159160 1315139584 1509421568 1643924480 1775790080 1886776960 1953369088 2075454656 2298081280 2441711360 2594318320 3018843136 3287848960 3551580160 3773553920 3906738176 4150909312 4883422720 5188636640 6037686272 6575697920 7547107840 7813476352 8301818624 9766845440 10377273280 12075372544 15094215680 16603637248 19533690880 20754546560 30188431360 33207274496 39067381760 41509093120 60376862720 66414548992 83018186240 132829097984 166036372480 332072744960 664145489920
• Sum of all divisors σ(n): 1865397960792
• Sum of proper divisors (its aliquot sum) s(n): 1201252470872
• 664145489920 is an abundant number, because the sum of its proper divisors (1201252470872) is greater than itself. Its abundance is 537106980952

Bases of 664145489920

• Binary: 1001101010100010001001111111000000000000₂
• Hexadecimal: 0x9AA227F000
• Base-36: 8H3R2RR4

Squares and roots of 664145489920

• 664145489920 squared (664145489920²) is 441089231781076821606400
• 664145489920 cubed (664145489920³) is 292947423939679699870938969407488000
• The square root of 664145489920 is 814951.2193499683
• The cube root of 664145489920 is 8724.7784824343

Scales and comparisons

• 664,145,489,920 seconds is equal to 21,117 years, 40 weeks, 1 day, 2 hours, 18 minutes, 40 seconds.
• To count from 1 to 664,145,489,920 would take you about forty-two thousand, two hundred thirty-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 664145489920 cubic inches would be around 727.1 feet tall.

Recreational maths with 664145489920

• 664145489920 backwards is 029984541466
• The number of decimal digits it has is: 12
• The sum of 664145489920's digits is 58
• More coming soon!