664147008

Names of 664147008

• Cardinal: 664147008 can be written as Six hundred sixty-four million, one hundred forty-seven thousand and eight.

Scientific notation

• Scientific notation: 6.64147008 × 10⁸

Factors of 664147008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1436

Divisors of 664147008

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 127 144 168 192 224 252 254 288 336 381 448 504 508 576 672 762 889 1008 1016 1143 1297 1344 1524 1778 2016 2032 2286 2594 2667 3048 3556 3891 4032 4064 4572 5188 5334 6096 7112 7782 8001 8128 9079 9144 10376 10668 11673 12192 14224 15564 16002 18158 18288 20752 21336 23346 24384 27237 28448 31128 32004 36316 36576 41504 42672 46692 54474 56896 62256 64008 72632 73152 81711 83008 85344 93384 108948 124512 128016 145264 163422 164719 170688 186768 217896 249024 256032 290528 326844 329438 373536 435792 494157 512064 581056 653688 658876 747072 871584 988314 1153033 1307376 1317752 1482471 1743168 1976628 2306066 2614752 2635504 2964942 3459099 3953256 4612132 5229504 5271008 5929884 6918198 7906512 9224264 10377297 10542016 11859768 13836396 15813024 18448528 20754594 23719536 27672792 31626048 36897056 41509188 47439072 55345584 73794112 83018376 94878144 110691168 166036752 221382336 332073504 664147008
• Sum of all divisors σ(n): 2194429952
• Sum of proper divisors (its aliquot sum) s(n): 1530282944
• 664147008 is an abundant number, because the sum of its proper divisors (1530282944) is greater than itself. Its abundance is 866135936

Bases of 664147008

• Binary: 100111100101100001010001000000₂
• Hexadecimal: 0x27961440
• Base-36: AZEZ40

Squares and roots of 664147008

• 664147008 squared (664147008²) is 441091248235352064
• 664147008 cubed (664147008³) is 292949432770494353132224512
• The square root of 664147008 is 25771.0498039951
• The cube root of 664147008 is 872.4785130025

Scales and comparisons

• 664,147,008 seconds is equal to 21 years, 6 weeks, 21 hours, 16 minutes, 48 seconds.
• To count from 1 to 664,147,008 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 664147008 cubic inches would be around 72.7 feet tall.

Recreational maths with 664147008

• 664147008 backwards is 800741466
• 664147008 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 664147008's digits is 36
• More coming soon!