640442973312

Names of 640442973312

• Cardinal: 640442973312 can be written as Six hundred forty billion, four hundred forty-two million, nine hundred seventy-three thousand, three hundred twelve.

Scientific notation

• Scientific notation: 6.40442973312 × 10¹¹

Factors of 640442973312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 17933587

Divisors of 640442973312

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 128 144 186 192 248 279 288 372 384 496 558 576 744 992 1116 1152 1488 1984 2232 2976 3968 4464 5952 8928 11904 17856 35712 17933551 35867102 53800653 71734204 107601306 143468408 161401959 215202612 286936816 322803918 430405224 555940081 573873632 645607836 860810448 1111880162 1147747264 1291215672 1667820243 1721620896 2223760324 2295494528 2582431344 3335640486 3443241792 4447520648 5003460729 5164862688 6671280972 6886483584 8895041296 10006921458 10329725376 13342561944 17790082592 20013842916 20659450752 26685123888 35580165184 40027685832 53370247776 71160330368 80055371664 106740495552 160110743328 213480991104 320221486656 640442973312
• Sum of all divisors σ(n): 1902391196160
• Sum of proper divisors (its aliquot sum) s(n): 1261948222848
• 640442973312 is an abundant number, because the sum of its proper divisors (1261948222848) is greater than itself. Its abundance is 621505249536

Bases of 640442973312

• Binary: 1001010100011101011000000011110010000000₂
• Hexadecimal: 0x951D603C80
• Base-36: 867R7KW0

Squares and roots of 640442973312

• 640442973312 squared (640442973312²) is 410167202064715144249344
• 640442973312 cubed (640442973312³) is 262688702445390072425364849665507328
• The square root of 640442973312 is 800276.8104299911
• The cube root of 640442973312 is 8619.7265454817

Scales and comparisons

• 640,442,973,312 seconds is equal to 20,364 years, 5 weeks, 3 days, 9 hours, 55 minutes, 12 seconds.
• To count from 1 to 640,442,973,312 would take you about forty thousand, seven hundred twenty-eight 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 640442973312 cubic inches would be around 718.3 feet tall.

Recreational maths with 640442973312

• 640442973312 backwards is 213379244046
• The number of decimal digits it has is: 12
• The sum of 640442973312's digits is 45
• More coming soon!