1320997728

Names of 1320997728

• Cardinal: 1320997728 can be written as One billion, three hundred twenty million, nine hundred ninety-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.320997728 × 10⁹

Factors of 1320997728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 131

Divisors of 1320997728

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 59 67 96 118 134 177 201 236 268 354 402 472 536 708 804 944 1072 1416 1608 1888 2144 2832 3216 3481 3953 5664 6432 6962 7906 10443 11859 13924 15812 20886 23718 27848 31624 41772 47436 55696 63248 83544 94872 111392 126496 167088 189744 205379 233227 334176 379488 410758 466454 616137 699681 821516 932908 1232274 1399362 1643032 1865816 2464548 2798724 3286064 3731632 4929096 5597448 6572128 7463264 9858192 11194896 13760393 19716384 22389792 27520786 41281179 55041572 82562358 110083144 165124716 220166288 330249432 440332576 660498864 1320997728
• Sum of all divisors σ(n): 3580053120
• Sum of proper divisors (its aliquot sum) s(n): 2259055392
• 1320997728 is an abundant number, because the sum of its proper divisors (2259055392) is greater than itself. Its abundance is 938057664

Bases of 1320997728

• Binary: 1001110101111001101001101100000₂
• Hexadecimal: 0x4EBCD360
• Base-36: LUHKDC

Squares and roots of 1320997728

• 1320997728 squared (1320997728²) is 1745034997381161984
• 1320997728 cubed (1320997728³) is 2305187266821000930863972352
• The square root of 1320997728 is 36345.5324352253
• The cube root of 1320997728 is 1097.2376219453

Scales and comparisons

• 1,320,997,728 seconds is equal to 42 years, 1 day, 7 hours, 48 minutes, 48 seconds.
• To count from 1 to 1,320,997,728 would take you about eighty-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 1320997728 cubic inches would be around 91.4 feet tall.

Recreational maths with 1320997728

• 1320997728 backwards is 8277990231
• 1320997728 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1320997728's digits is 48
• More coming soon!