28709397155320

Names of 28709397155320

• Cardinal: 28709397155320 can be written as Twenty-eight trillion, seven hundred nine billion, three hundred ninety-seven million, one hundred fifty-five thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.870939715532 × 10¹³

Factors of 28709397155320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 236389

Divisors of 28709397155320

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 68 70 85 119 136 140 170 238 280 340 476 595 680 952 1190 2380 4760 29101 58202 116404 145505 203707 207257 232808 291010 407414 414514 494717 582020 814828 829028 989434 1018535 1036285 1164040 1450799 1629656 1658056 1978868 2037070 2072570 2473585 2901598 3463019 3523369 3957736 4074140 4145140 4947170 5803196 6926038 7046738 7253995 8148280 8290280 9894340 11606392 13852076 14093476 14507990 17315095 17616845 19788680 24663583 27704152 28186952 29015980 34630190 35233690 49327166 58031960 69260380 70467380 98654332 123317915 138520760 140934760 197308664 246635830 493271660 986543320 6031385957 12062771914 24125543828 30156929785 42219701699 48251087656 60313859570 84439403398 102533561269 120627719140 168878806796 205067122538 211098508495 241255438280 337757613592 410134245076 422197016990 512667806345 717734928883 820268490152 844394033980 1025335612690 1435469857766 1688788067960 2050671225380 2870939715532 3588674644415 4101342450760 5741879431064 7177349288830 14354698577660 28709397155320
• Sum of all divisors σ(n): 78169825215360
• Sum of proper divisors (its aliquot sum) s(n): 49460428060040
• 28709397155320 is an abundant number, because the sum of its proper divisors (49460428060040) is greater than itself. Its abundance is 20751030904720

Bases of 28709397155320

• Binary: 110100001110001101101011010110100110111111000₂
• Hexadecimal: 0x1A1C6D6B4DF8
• Base-36: A6CWXT7UG

Squares and roots of 28709397155320

• 28709397155320 squared (28709397155320²) is 824229485021896108204302400
• 28709397155320 cubed (28709397155320³) is 23663131632618492676793178235945048768000
• The square root of 28709397155320 is 5358115.0748486169
• The cube root of 28709397155320 is 30620.2000970587

Scales and comparisons

• 28,709,397,155,320 seconds is equal to 912,870 years, 1 week, 2 days, 7 hours, 8 minutes, 40 seconds.
• To count from 1 to 28,709,397,155,320 would take you about two million, two hundred eighty-two thousand, one hundred seventy-five 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 28709397155320 cubic inches would be around 2551.7 feet tall.

Recreational maths with 28709397155320

• 28709397155320 backwards is 02355179390782
• The number of decimal digits it has is: 14
• The sum of 28709397155320's digits is 61
• More coming soon!