685128704

Names of 685128704

• Cardinal: 685128704 can be written as Six hundred eighty-five million, one hundred twenty-eight thousand, seven hundred four.

Scientific notation

• Scientific notation: 6.85128704 × 10⁸

Factors of 685128704

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 159

Divisors of 685128704

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 4 8 13 16 26 32 37 52 64 74 104 107 128 148 169 208 214 256 296 338 416 428 481 512 592 676 832 856 962 1024 1184 1352 1391 1664 1712 1924 2368 2704 2782 3328 3424 3848 3959 4736 5408 5564 6253 6656 6848 7696 7918 9472 10816 11128 12506 13312 13696 15392 15836 18083 18944 21632 22256 25012 27392 30784 31672 36166 37888 43264 44512 50024 51467 54784 61568 63344 72332 86528 89024 100048 102934 109568 123136 126688 144664 173056 178048 200096 205868 246272 253376 289328 356096 400192 411736 492544 506752 578656 669071 712192 800384 823472 1013504 1157312 1338142 1424384 1600768 1646944 2027008 2314624 2676284 3201536 3293888 4054016 4629248 5352568 6403072 6587776 9258496 10705136 13175552 18516992 21410272 26351104 42820544 52702208 85641088 171282176 342564352 685128704
• Sum of all divisors σ(n): 1537362504
• Sum of proper divisors (its aliquot sum) s(n): 852233800
• 685128704 is an abundant number, because the sum of its proper divisors (852233800) is greater than itself. Its abundance is 167105096

Bases of 685128704

• Binary: 101000110101100011110000000000₂
• Hexadecimal: 0x28D63C00
• Base-36: BBWOOW

Squares and roots of 685128704

• 685128704 squared (685128704²) is 469401341044719616
• 685128704 cubed (685128704³) is 321600332445830756553457664
• The square root of 685128704 is 26174.9633046543
• The cube root of 685128704 is 881.5711875591

Scales and comparisons

• 685,128,704 seconds is equal to 21 years, 40 weeks, 5 days, 17 hours, 31 minutes, 44 seconds.
• To count from 1 to 685,128,704 would take you about thirty-two 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 685128704 cubic inches would be around 73.5 feet tall.

Recreational maths with 685128704

• 685128704 backwards is 407821586
• The number of decimal digits it has is: 9
• The sum of 685128704's digits is 41
• More coming soon!