664288768

Names of 664288768

• Cardinal: 664288768 can be written as Six hundred sixty-four million, two hundred eighty-eight thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 6.64288768 × 10⁸

Factors of 664288768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 280

Divisors of 664288768

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 32 43 44 52 64 86 88 104 128 143 172 176 208 211 256 286 344 352 416 422 473 512 559 572 688 704 832 844 946 1118 1144 1376 1408 1664 1688 1892 2236 2288 2321 2743 2752 2816 3328 3376 3784 4472 4576 4642 5486 5504 5632 6149 6656 6752 7568 8944 9073 9152 9284 10972 11008 12298 13504 15136 17888 18146 18304 18568 21944 22016 24596 27008 30173 30272 35776 36292 36608 37136 43888 49192 54016 60346 60544 71552 72584 73216 74272 87776 98384 99803 108032 117949 120692 121088 143104 145168 148544 175552 196768 199606 235898 241384 242176 286208 290336 297088 351104 393536 399212 471796 482768 580672 594176 702208 787072 798424 943592 965536 1161344 1188352 1297439 1404416 1574144 1596848 1887184 1931072 2322688 2594878 3148288 3193696 3774368 3862144 4645376 5189756 6387392 7548736 7724288 10379512 12774784 15097472 15448576 20759024 25549568 30194944 41518048 51099136 60389888 83036096 166072192 332144384 664288768
• Sum of all divisors σ(n): 1603147392
• Sum of proper divisors (its aliquot sum) s(n): 938858624
• 664288768 is an abundant number, because the sum of its proper divisors (938858624) is greater than itself. Its abundance is 274569856

Bases of 664288768

• Binary: 100111100110000011111000000000₂
• Hexadecimal: 0x27983E00
• Base-36: AZI0HS

Squares and roots of 664288768

• 664288768 squared (664288768²) is 441279567290957824
• 664288768 cubed (664288768³) is 293137060099283470444920832
• The square root of 664288768 is 25773.8000302633
• The cube root of 664288768 is 872.5405844785

Scales and comparisons

• 664,288,768 seconds is equal to 21 years, 6 weeks, 2 days, 12 hours, 39 minutes, 28 seconds.
• To count from 1 to 664,288,768 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 664288768 cubic inches would be around 72.7 feet tall.

Recreational maths with 664288768

• 664288768 backwards is 867882466
• The number of decimal digits it has is: 9
• The sum of 664288768's digits is 55
• More coming soon!