664399367940

Names of 664399367940

• Cardinal: 664399367940 can be written as Six hundred sixty-four billion, three hundred ninety-nine million, three hundred sixty-seven thousand, nine hundred forty.

Scientific notation

• Scientific notation: 6.6439936794 × 10¹¹

Factors of 664399367940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8497

Divisors of 664399367940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 97 105 110 132 140 154 165 181 194 210 220 231 291 308 330 362 385 388 420 462 485 543 582 660 679 724 770 905 924 970 1067 1086 1155 1164 1267 1358 1455 1540 1810 1940 1991 2037 2134 2172 2310 2534 2715 2716 2910 3201 3395 3620 3801 3982 4074 4268 4620 5068 5335 5430 5820 5973 6335 6402 6790 7469 7602 7964 8148 8191 9955 10185 10670 10860 11946 12670 12804 13580 13937 14938 15204 16005 16382 17557 19005 19910 20370 21340 22407 23892 24573 25340 27874 29865 29876 32010 32764 35114 37345 38010 39820 40740 40955 41811 44814 49146 52671 55748 57337 59730 64020 69685 70228 74690 76020 81910 83622 87785 89628 90101 98292 105342 112035 114674 119460 122865 122899 139370 149380 163820 167244 172011 175570 180202 193127 209055 210684 224070 229348 245730 245798 263355 270303 278740 286685 344022 351140 360404 368697 386254 418110 448140 450505 491460 491596 526710 540606 573370 579381 614495 630707 688044 737394 772508 794527 836220 860055 901010 965635 1053420 1081212 1146740 1158762 1228990 1261414 1351515 1351889 1474788 1482571 1589054 1720110 1802020 1843485 1892121 1931270 2317524 2383581 2457980 2522828 2703030 2703778 2896905 2965142 3153535 3178108 3440220 3686970 3784242 3862540 3972635 4055667 4447713 4767162 5406060 5407556 5561689 5793810 5930284 6307070 6759445 7373940 7412855 7568484 7945270 8111334 8739797 8895426 9460605 9534324 10377997 11123378 11587620 11917905 12614140 13518890 14825710 15890540 16222668 16308281 16685067 17479594 17790852 18921210 20278335 20755994 22238565 22246756 23835810 26219391 27037780 27808445 29651420 31133991 32616562 33370134 34959188 37842420 40556670 41511988 43698985 44477130 47671620 48924843 51889985 52438782 55616890 61178579 62267982 65233124 66740268 81113340 81541405 83425335 87397970 88954260 97849686 103779970 104877564 111233780 114157967 122357158 124535964 131096955 143809387 155669955 163082810 166850670 174795940 183535737 195699372 207559940 228315934 244624215 244714316 262193910 287618774 305892895 311339910 326165620 333701340 342473901 367071474 431428161 456631868 489248430 524387820 570789835 575237548 611785790 622679820 684947802 719046935 734142948 862856322 917678685 978496860 1006665709 1141579670 1223571580 1369895604 1438093870 1581903257 1712369505 1725712644 1835357370 2013331418 2157140805 2283159340 2876187740 3019997127 3163806514 3424739010 3670714740 4026662836 4314281610 4745709771 5033328545 6039994254 6327613028 6849478020 7909516285 8628563220 9491419542 10066657090 11073322799 12079988508 15099985635 15819032570 18982839084 20133314180 22146645598 23728548855 30199971270 31638065140 33219968397 44293291196 47457097710 55366613995 60399942540 66439936794 94914195420 110733227990 132879873588 166099841985 221466455980 332199683970 664399367940
• Sum of all divisors σ(n): 2356502593536
• Sum of proper divisors (its aliquot sum) s(n): 1692103225596
• 664399367940 is an abundant number, because the sum of its proper divisors (1692103225596) is greater than itself. Its abundance is 1027703857656

Bases of 664399367940

• Binary: 1001101010110001010010011100111100000100₂
• Hexadecimal: 0x9AB149CF04
• Base-36: 8H7Y89AC

Squares and roots of 664399367940

• 664399367940 squared (664399367940²) is 441426520119071499843600
• 664399367940 cubed (664399367940³) is 293283500959064798035755648854184000
• The square root of 664399367940 is 815106.9671767013
• The cube root of 664399367940 is 8725.8900598113

Scales and comparisons

• 664,399,367,940 seconds is equal to 21,125 years, 43 weeks, 6 days, 11 hours, 59 minutes.
• To count from 1 to 664,399,367,940 would take you about forty-two thousand, two hundred fifty-one 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 664399367940 cubic inches would be around 727.2 feet tall.

Recreational maths with 664399367940

• 664399367940 backwards is 049763993466
• 664399367940 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 664399367940's digits is 66
• More coming soon!