640489388000000

Names of 640489388000000

• Cardinal: 640489388000000 can be written as Six hundred forty trillion, four hundred eighty-nine billion, three hundred eighty-eight million.

Scientific notation

• Scientific notation: 6.40489388 × 10¹⁴

Factors of 640489388000000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 93

Divisors of 640489388000000

• Number of divisors d(n): 3024
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 25 28 31 32 35 37 40 44 49 50 55 56 62 64 70 74 77 80 88 98 100 110 112 124 125 128 140 148 154 155 160 175 176 185 196 200 217 220 224 245 248 250 256 259 275 280 296 308 310 320 341 343 350 352 370 385 392 400 407 434 440 448 490 496 500 518 539 550 560 592 616 620 625 640 682 686 700 704 740 770 775 784 800 814 868 875 880 896 925 980 992 1000 1036 1078 1085 1100 1120 1147 1184 1225 1232 1240 1250 1280 1295 1364 1369 1372 1375 1400 1408 1480 1519 1540 1550 1568 1600 1628 1705 1715 1736 1750 1760 1792 1813 1850 1925 1960 1984 2000 2035 2072 2156 2170 2200 2240 2294 2368 2387 2450 2464 2480 2500 2590 2695 2728 2738 2744 2750 2800 2816 2849 2960 3038 3080 3100 3125 3136 3200 3256 3410 3430 3472 3500 3520 3626 3700 3773 3850 3875 3920 3968 4000 4070 4144 4312 4340 4375 4400 4480 4588 4625 4736 4774 4900 4928 4960 5000 5180 5390 5425 5456 5476 5488 5500 5600 5698 5735 5920 6076 6125 6160 6200 6250 6272 6400 6475 6512 6820 6845 6860 6875 6944 7000 7040 7252 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• Sum of all divisors σ(n): 2156903391283200
• Sum of proper divisors (its aliquot sum) s(n): 1516414003283200
• 640489388000000 is an abundant number, because the sum of its proper divisors (1516414003283200) is greater than itself. Its abundance is 875924615283200

Bases of 640489388000000

• Binary: 10010001101000010110001110011101000100001100000000₂
• Hexadecimal: 0x246858E744300
• Base-36: 6B18RGO3CW

Squares and roots of 640489388000000

• 640489388000000 squared (640489388000000²) is 410226656140614544000000000000
• 640489388000000 cubed (640489388000000³) is 262745819932788651230459072000000000000000000
• The square root of 640489388000000 is 25307891.8126342557
• The cube root of 640489388000000 is 86199.3477232381

Scales and comparisons

• 640,489,388,000,000 seconds is equal to 20,365,581 years, 19 weeks, 3 days, 8 hours, 53 minutes, 20 seconds.
• To count from 1 to 640,489,388,000,000 would take you about fifty million, nine hundred thirteen thousand, nine hundred fifty-three 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 640489388000000 cubic inches would be around 7183.3 feet tall.

Recreational maths with 640489388000000

• 640489388000000 backwards is 000000883984046
• 640489388000000 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640489388000000's digits is 50
• More coming soon!