668449616380

Names of 668449616380

• Cardinal: 668449616380 can be written as Six hundred sixty-eight billion, four hundred forty-nine million, six hundred sixteen thousand, three hundred eighty.

Scientific notation

• Scientific notation: 6.6844961638 × 10¹¹

Factors of 668449616380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 141

Divisors of 668449616380

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 41 52 65 70 73 82 91 130 140 146 164 182 205 260 287 292 364 365 410 455 511 533 574 730 820 910 949 1022 1066 1148 1435 1460 1681 1820 1898 2044 2132 2555 2665 2870 2993 3362 3731 3796 4745 5110 5329 5330 5740 5986 6643 6724 7462 8405 9490 10220 10658 10660 11767 11972 13286 14924 14965 16810 18655 18980 20951 21316 21853 23534 26572 26645 29930 33215 33620 37303 37310 38909 41902 43706 47068 53290 58835 59860 66430 68921 69277 74606 74620 77818 83804 87412 104755 106580 109265 117670 122713 132860 137842 138554 149212 152971 155636 186515 194545 209510 218489 218530 235340 245426 272363 275684 277108 305942 344605 346385 373030 389090 419020 436978 437060 482447 484939 490852 544726 611884 613565 689210 692770 746060 764855 778180 858991 873956 895973 964894 969878 1089452 1092445 1227130 1361815 1378420 1385540 1529423 1529710 1595269 1717982 1791946 1929788 1939756 2184890 2412235 2424695 2454260 2723630 2840357 3058846 3059420 3190538 3435964 3583892 4294955 4369780 4479865 4824470 4849390 5031233 5447260 5680714 6117692 6271811 6381076 7647115 7976345 8589910 8958049 8959730 9648940 9698780 10062466 11166883 11361428 12543622 14201785 15294230 15952690 17179820 17916098 17919460 19882499 20124932 22333766 25087244 25156165 28403570 30588460 31359055 31905380 35218631 35832196 39764998 44667532 44790245 50312330 55834415 56807140 62706343 62718110 65406029 70437262 79529996 89580490 99412495 100624660 111668830 116454637 125412686 125436220 130812058 140874524 176093155 179160980 198824990 223337660 232909274 250825372 261624116 313531715 327030145 352186310 367280009 397649980 457842203 465818548 582273185 627063430 654060290 704372620 734560018 815182459 915684406 1164546370 1254126860 1308120580 1469120036 1630364918 1831368812 1836400045 2289211015 2329092740 2570960063 3260729836 3672800090 4075912295 4578422030 4774640117 5141920126 7345600180 8151824590 9156844060 9549280234 10283840252 12854800315 16303649180 19098560468 23873200585 25709600630 33422480819 47746401170 51419201260 66844961638 95492802340 133689923276 167112404095 334224808190 668449616380
• Sum of all divisors σ(n): 1795467558528
• Sum of proper divisors (its aliquot sum) s(n): 1127017942148
• 668449616380 is an abundant number, because the sum of its proper divisors (1127017942148) is greater than itself. Its abundance is 458568325768

Bases of 668449616380

• Binary: 1001101110100010101100111011000111111100₂
• Hexadecimal: 0x9BA2B3B1FC
• Base-36: 8J2XN4ZG

Squares and roots of 668449616380

• 668449616380 squared (668449616380²) is 446824889638569164304400
• 668449616380 cubed (668449616380³) is 298679926067937394731373369546072000
• The square root of 668449616380 is 817587.6811571955
• The cube root of 668449616380 is 8743.5854652723

Scales and comparisons

• 668,449,616,380 seconds is equal to 21,254 years, 32 weeks, 5 days, 8 hours, 59 minutes, 40 seconds.
• To count from 1 to 668,449,616,380 would take you about forty-two thousand, five hundred 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 668449616380 cubic inches would be around 728.6 feet tall.

Recreational maths with 668449616380

• 668449616380 backwards is 083616944866
• The number of decimal digits it has is: 12
• The sum of 668449616380's digits is 61
• More coming soon!