689442816

Names of 689442816

• Cardinal: 689442816 can be written as Six hundred eighty-nine million, four hundred forty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.89442816 × 10⁸

Factors of 689442816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2977

Divisors of 689442816

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 512 608 768 912 1024 1216 1536 1824 2048 2432 2953 3072 3648 4096 4864 5906 6144 7296 8859 9728 11812 12288 14592 17718 19456 23624 29184 35436 38912 47248 56107 58368 70872 77824 94496 112214 116736 141744 168321 188992 224428 233472 283488 336642 377984 448856 566976 673284 755968 897712 1133952 1346568 1511936 1795424 2267904 2693136 3023872 3590848 4535808 5386272 6047744 7181696 9071616 10772544 12095488 14363392 18143232 21545088 28726784 36286464 43090176 57453568 86180352 114907136 172360704 229814272 344721408 689442816
• Sum of all divisors σ(n): 1935697120
• Sum of proper divisors (its aliquot sum) s(n): 1246254304
• 689442816 is an abundant number, because the sum of its proper divisors (1246254304) is greater than itself. Its abundance is 556811488

Bases of 689442816

• Binary: 101001000110000001000000000000₂
• Hexadecimal: 0x29181000
• Base-36: BEH5HC

Squares and roots of 689442816

• 689442816 squared (689442816²) is 475331396534009856
• 689442816 cubed (689442816³) is 327713816559620394892394496
• The square root of 689442816 is 26257.2431149959
• The cube root of 689442816 is 883.4176737159

Scales and comparisons

• 689,442,816 seconds is equal to 21 years, 47 weeks, 6 days, 15 hours, 53 minutes, 36 seconds.
• To count from 1 to 689,442,816 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 689442816 cubic inches would be around 73.6 feet tall.

Recreational maths with 689442816

• 689442816 backwards is 618244986
• 689442816 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 689442816's digits is 48
• More coming soon!