128737816830

Names of 128737816830

• Cardinal: 128737816830 can be written as One hundred twenty-eight billion, seven hundred thirty-seven million, eight hundred sixteen thousand, eight hundred thirty.

Scientific notation

• Scientific notation: 1.2873781683 × 10¹¹

Factors of 128737816830

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3585049

Divisors of 128737816830

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 35 38 42 45 54 57 63 70 90 95 105 114 126 133 135 171 189 190 210 266 270 285 315 342 378 399 513 570 630 665 798 855 945 1026 1197 1330 1710 1890 1995 2394 2565 3591 3990 5130 5985 7182 11970 17955 35910 3585013 7170026 10755039 17925065 21510078 25095091 32265117 35850130 50190182 53775195 64530234 68115247 75285273 96795351 107550390 125475455 136230494 150570546 161325585 193590702 204345741 225855819 250950910 322651170 340576235 376426365 408691482 451711638 476806729 483976755 613037223 677567457 681152470 752852730 953613458 967953510 1021728705 1129279095 1226074446 1355134914 1430420187 1839111669 2043457410 2258558190 2384033645 2860840374 3065186115 3387837285 3678223338 4291260561 4768067290 6130372230 6775674570 7152100935 8582521122 9195558345 12873781683 14304201870 18391116690 21456302805 25747563366 42912605610 64368908415 128737816830
• Sum of all divisors σ(n): 412993612800
• Sum of proper divisors (its aliquot sum) s(n): 284255795970
• 128737816830 is an abundant number, because the sum of its proper divisors (284255795970) is greater than itself. Its abundance is 155517979140

Bases of 128737816830

• Binary: 1110111111001010111110011000011111110₂
• Hexadecimal: 0x1DF95F30FE
• Base-36: 1N53677I

Squares and roots of 128737816830

• 128737816830 squared (128737816830²) is 16573425482154631248900
• 128737816830 cubed (128737816830³) is 2133626613967277351457082338987000
• The square root of 128737816830 is 358800.5251250337
• The cube root of 128737816830 is 5049.3488926913

Scales and comparisons

• 128,737,816,830 seconds is equal to 4,093 years, 24 weeks, 1 day, 40 minutes, 30 seconds.
• To count from 1 to 128,737,816,830 would take you about eight thousand, one hundred eighty-six 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 128737816830 cubic inches would be around 420.8 feet tall.

Recreational maths with 128737816830

• 128737816830 backwards is 038618737821
• 128737816830 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128737816830's digits is 54
• More coming soon!