640421856300

Names of 640421856300

• Cardinal: 640421856300 can be written as Six hundred forty billion, four hundred twenty-one million, eight hundred fifty-six thousand, three hundred.

Scientific notation

• Scientific notation: 6.404218563 × 10¹¹

Factors of 640421856300

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4041

Divisors of 640421856300

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 17 20 25 30 34 50 51 60 68 75 85 100 102 150 170 181 204 255 300 340 362 425 510 543 724 850 905 1020 1086 1275 1700 1810 2172 2550 2715 3077 3620 3833 4525 5100 5430 6154 7666 9050 9231 10860 11499 12308 13575 15332 15385 18100 18462 19165 22998 27150 30770 32761 36924 38330 45996 46155 54300 57495 61540 65161 65522 76660 76925 92310 95825 98283 114990 130322 131044 153850 163805 184620 191650 195483 196566 229980 230775 260644 287475 307700 325805 327610 383300 390966 393132 461550 491415 556937 574950 651610 655220 693773 781932 819025 923100 977415 982830 1113874 1149900 1303220 1387546 1629025 1638050 1670811 1954830 1965660 2081319 2227748 2457075 2775092 2784685 3258050 3276100 3341622 3468865 3909660 4162638 4887075 4914150 5569370 6516100 6683244 6937730 8325276 8354055 9774150 9828300 10406595 11138740 11794141 13875460 13923425 16708110 17344325 19548300 20813190 23588282 27846850 33416220 34688650 35382423 41626380 41770275 47176564 52032975 55693700 58970705 69377300 70764846 83540550 104065950 117941410 125572913 141529692 167081100 176912115 208131900 235882820 251145826 294853525 353824230 376718739 502291652 589707050 627864565 707648460 753437478 884560575 1179414100 1255729130 1506874956 1769121150 1883593695 2134739521 2511458260 3139322825 3538242300 3767187390 4269479042 6278645650 6404218563 7534374780 8538958084 9417968475 10673697605 12557291300 12808437126 18835936950 21347395210 25616874252 32021092815 37671873900 42694790420 53368488025 64042185630 106736976050 128084371260 160105464075 213473952100 320210928150 640421856300
• Sum of all divisors σ(n): 1973365290288
• Sum of proper divisors (its aliquot sum) s(n): 1332943433988
• 640421856300 is an abundant number, because the sum of its proper divisors (1332943433988) is greater than itself. Its abundance is 692521577688

Bases of 640421856300

• Binary: 1001010100011100000111100000010000101100₂
• Hexadecimal: 0x951C1E042C
• Base-36: 867EMYWC

Squares and roots of 640421856300

• 640421856300 squared (640421856300²) is 410140154026737849690000
• 640421856300 cubed (640421856300³) is 262662718784971373531940179547000000
• The square root of 640421856300 is 800263.6167538795
• The cube root of 640421856300 is 8619.6318064355

Scales and comparisons

• 640,421,856,300 seconds is equal to 20,363 years, 22 weeks, 4 days, 5 minutes.
• To count from 1 to 640,421,856,300 would take you about forty thousand, seven hundred twenty-six 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 640421856300 cubic inches would be around 718.3 feet tall.

Recreational maths with 640421856300

• 640421856300 backwards is 003658124046
• The number of decimal digits it has is: 12
• The sum of 640421856300's digits is 39
• More coming soon!