1298391220

Names of 1298391220

• Cardinal: 1298391220 can be written as One billion, two hundred ninety-eight million, three hundred ninety-one thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.29839122 × 10⁹

Factors of 1298391220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 813

Divisors of 1298391220

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 103 133 140 190 196 206 245 266 380 412 490 515 532 665 677 721 931 980 1030 1330 1354 1442 1862 1957 2060 2660 2708 2884 3385 3605 3724 3914 4655 4739 5047 6770 7210 7828 9310 9478 9785 10094 12863 13540 13699 14420 18620 18956 19570 20188 23695 25235 25726 27398 33173 39140 47390 50470 51452 54796 64315 66346 68495 69731 90041 94780 95893 100940 128630 132692 136990 139462 165865 180082 191786 257260 273980 278924 331730 348655 360164 383572 450205 479465 488117 630287 663460 697310 900410 958930 976234 1260574 1324889 1394620 1800820 1917860 1952468 2440585 2521148 2649778 3151435 3416819 4881170 5299556 6302870 6624445 6833638 9274223 9762340 12605740 13248890 13667276 17084095 18548446 26497780 34168190 37096892 46371115 64919561 68336380 92742230 129839122 185484460 259678244 324597805 649195610 1298391220
• Sum of all divisors σ(n): 3376114560
• Sum of proper divisors (its aliquot sum) s(n): 2077723340
• 1298391220 is an abundant number, because the sum of its proper divisors (2077723340) is greater than itself. Its abundance is 779332120

Bases of 1298391220

• Binary: 1001101011000111110000010110100₂
• Hexadecimal: 0x4D63E0B4
• Base-36: LH112S

Squares and roots of 1298391220

• 1298391220 squared (1298391220²) is 1685819760173088400
• 1298391220 cubed (1298391220³) is 2188853575111243658843848000
• The square root of 1298391220 is 36033.1960836115
• The cube root of 1298391220 is 1090.9424892595

Scales and comparisons

• 1,298,391,220 seconds is equal to 41 years, 14 weeks, 5 days, 16 hours, 13 minutes, 40 seconds.
• To count from 1 to 1,298,391,220 would take you about eighty-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 1298391220 cubic inches would be around 90.9 feet tall.

Recreational maths with 1298391220

• 1298391220 backwards is 0221938921
• The number of decimal digits it has is: 10
• The sum of 1298391220's digits is 37
• More coming soon!