640407293424

Names of 640407293424

• Cardinal: 640407293424 can be written as Six hundred forty billion, four hundred seven million, two hundred ninety-three thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 6.40407293424 × 10¹¹

Factors of 640407293424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4327

Divisors of 640407293424

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 271 542 813 1084 1626 2168 2439 3252 4051 4336 4878 6504 8102 9756 12153 13008 16204 19512 24306 32408 36459 39024 48612 64816 72918 97224 145836 194448 291672 583344 1097821 2195642 3293463 4391284 6586926 8782568 9880389 13173852 16410601 17565136 19760778 26347704 32821202 39521556 49231803 52695408 65642404 79043112 98463606 131284808 147695409 158086224 196927212 262569616 295390818 393854424 590781636 787708848 1181563272 2363126544 4447272871 8894545742 13341818613 17789091484 26683637226 35578182968 40025455839 53367274452 71156365936 80050911678 106734548904 160101823356 213469097808 320203646712 640407293424
• Sum of all divisors σ(n): 1799308603248
• Sum of proper divisors (its aliquot sum) s(n): 1158901309824
• 640407293424 is an abundant number, because the sum of its proper divisors (1158901309824) is greater than itself. Its abundance is 518494016400

Bases of 640407293424

• Binary: 1001010100011011001111111100110111110000₂
• Hexadecimal: 0x951B3FCDF0
• Base-36: 8675YU40

Squares and roots of 640407293424

• 640407293424 squared (640407293424²) is 410121501470653233643776
• 640407293424 cubed (640407293424³) is 262644800731808072923064085523329024
• The square root of 640407293424 is 800254.5179028981
• The cube root of 640407293424 is 8619.5664705533

Scales and comparisons

• 640,407,293,424 seconds is equal to 20,362 years, 50 weeks, 3 days, 10 hours, 50 minutes, 24 seconds.
• To count from 1 to 640,407,293,424 would take you about forty thousand, seven hundred twenty-five 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 640407293424 cubic inches would be around 718.3 feet tall.

Recreational maths with 640407293424

• 640407293424 backwards is 424392704046
• The number of decimal digits it has is: 12
• The sum of 640407293424's digits is 45
• More coming soon!