664546140

Names of 664546140

• Cardinal: 664546140 can be written as Six hundred sixty-four million, five hundred forty-six thousand, one hundred forty.

Scientific notation

• Scientific notation: 6.6454614 × 10⁸

Factors of 664546140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 14920

Divisors of 664546140

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 83 90 108 135 166 180 249 270 332 415 498 540 747 830 996 1245 1494 1660 2241 2490 2988 3735 4482 4980 7470 8964 11205 14827 14940 22410 29654 44481 44820 59308 74135 88962 133443 148270 177924 222405 266886 296540 400329 444810 533772 667215 800658 889620 1230641 1334430 1601316 2001645 2461282 2668860 3691923 4003290 4922564 6153205 7383846 8006580 11075769 12306410 14767692 18459615 22151538 24612820 33227307 36919230 44303076 55378845 66454614 73838460 110757690 132909228 166136535 221515380 332273070 664546140
• Sum of all divisors σ(n): 2092527360
• Sum of proper divisors (its aliquot sum) s(n): 1427981220
• 664546140 is an abundant number, because the sum of its proper divisors (1427981220) is greater than itself. Its abundance is 763435080

Bases of 664546140

• Binary: 100111100111000010101101011100₂
• Hexadecimal: 0x279C2B5C
• Base-36: AZNJ30

Squares and roots of 664546140

• 664546140 squared (664546140²) is 441621572188899600
• 664546140 cubed (664546140³) is 293477911138864580027544000
• The square root of 664546140 is 25778.7924465053
• The cube root of 664546140 is 872.6532556187

Scales and comparisons

• 664,546,140 seconds is equal to 21 years, 6 weeks, 5 days, 12 hours, 9 minutes.
• To count from 1 to 664,546,140 would take you about thirty-one 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 664546140 cubic inches would be around 72.7 feet tall.

Recreational maths with 664546140

• 664546140 backwards is 041645466
• 664546140 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 664546140's digits is 36
• More coming soon!