640072039712

Names of 640072039712

• Cardinal: 640072039712 can be written as Six hundred forty billion, seventy-two million, thirty-nine thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 6.40072039712 × 10¹¹

Factors of 640072039712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 34280

Divisors of 640072039712

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 32 49 56 62 98 112 124 196 217 224 248 389 392 434 496 778 784 868 992 1519 1556 1568 1736 2723 3038 3112 3472 5446 6076 6224 6944 10892 12059 12152 12448 19061 21784 24118 24304 33851 38122 43568 48236 48608 67702 76244 84413 87136 96472 135404 152488 168826 192944 236957 270808 304976 337652 385888 473914 541616 590891 609952 675304 947828 1049381 1083232 1181782 1350608 1658699 1895656 2098762 2363564 2701216 3317398 3791312 4197524 4727128 6634796 7345667 7582624 8395048 9454256 13168039 13269592 14691334 16790096 18908512 26336078 26539184 29382668 33580192 51419669 52672156 53078368 58765336 92176273 102839338 105344312 117530672 184352546 205678676 210688624 235061344 368705092 408209209 411357352 421377248 645233911 737410184 816418418 822714704 1290467822 1474820368 1632836836 1645429408 2580935644 2857464463 2949640736 3265673672 5161871288 5714928926 6531347344 10323742576 11429857852 13062694688 20002251241 20647485152 22859715704 40004502482 45719431408 80009004964 91438862816 160018009928 320036019856 640072039712
• Sum of all divisors σ(n): 1517100399360
• Sum of proper divisors (its aliquot sum) s(n): 877028359648
• 640072039712 is an abundant number, because the sum of its proper divisors (877028359648) is greater than itself. Its abundance is 236956319936

Bases of 640072039712

• Binary: 1001010100000111010001000011110100100000₂
• Hexadecimal: 0x9507443D20
• Base-36: 861MD6OW

Squares and roots of 640072039712

• 640072039712 squared (640072039712²) is 409692216021080105042944
• 640072039712 cubed (640072039712³) is 262232532362742067624180383433392128
• The square root of 640072039712 is 800045.0235530497
• The cube root of 640072039712 is 8618.0620914433

Scales and comparisons

• 640,072,039,712 seconds is equal to 20,352 years, 16 weeks, 1 day, 4 hours, 48 minutes, 32 seconds.
• To count from 1 to 640,072,039,712 would take you about forty thousand, seven hundred four 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 640072039712 cubic inches would be around 718.2 feet tall.

Recreational maths with 640072039712

• 640072039712 backwards is 217930270046
• The number of decimal digits it has is: 12
• The sum of 640072039712's digits is 41
• More coming soon!