728956928

Names of 728956928

• Cardinal: 728956928 can be written as Seven hundred twenty-eight million, nine hundred fifty-six thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 7.28956928 × 10⁸

Factors of 728956928

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 236

Divisors of 728956928

• Number of divisors d(n): 102
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 227 256 392 448 454 512 784 896 908 1024 1568 1589 1792 1816 2048 3136 3178 3584 3632 4096 6272 6356 7168 7264 8192 11123 12544 12712 14336 14528 16384 22246 25088 25424 28672 29056 32768 44492 50176 50848 57344 58112 65536 88984 100352 101696 114688 116224 177968 200704 203392 229376 232448 355936 401408 406784 458752 464896 711872 802816 813568 929792 1423744 1605632 1627136 1859584 2847488 3211264 3254272 3719168 5694976 6508544 7438336 11389952 13017088 14876672 22779904 26034176 45559808 52068352 91119616 104136704 182239232 364478464 728956928
• Sum of all divisors σ(n): 1703398716
• Sum of proper divisors (its aliquot sum) s(n): 974441788
• 728956928 is an abundant number, because the sum of its proper divisors (974441788) is greater than itself. Its abundance is 245484860

Bases of 728956928

• Binary: 101011011100110000000000000000₂
• Hexadecimal: 0x2B730000
• Base-36: C202RK

Squares and roots of 728956928

• 728956928 squared (728956928²) is 531378202879197184
• 728956928 cubed (728956928³) is 387351822376980334354890752
• The square root of 728956928 is 26999.2023585881
• The cube root of 728956928 is 899.9822745481

Scales and comparisons

• 728,956,928 seconds is equal to 23 years, 9 weeks, 2 days, 2 minutes, 8 seconds.
• To count from 1 to 728,956,928 would take you about thirty-four 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 728956928 cubic inches would be around 75 feet tall.

Recreational maths with 728956928

• 728956928 backwards is 829659827
• 728956928 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 728956928's digits is 56
• More coming soon!