28712688073920

Names of 28712688073920

• Cardinal: 28712688073920 can be written as Twenty-eight trillion, seven hundred twelve billion, six hundred eighty-eight million, seventy-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.871268807392 × 10¹³

Factors of 28712688073920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 321602730

Divisors of 28712688073920

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 31 32 36 40 45 48 60 62 64 72 80 90 93 96 120 124 144 155 160 180 186 192 240 248 279 288 310 320 360 372 465 480 496 558 576 620 720 744 930 960 992 1116 1240 1395 1440 1488 1860 1984 2232 2480 2790 2880 2976 3720 4464 4960 5580 5952 7440 8928 9920 11160 14880 17856 22320 29760 44640 89280 321602689 643205378 964808067 1286410756 1608013445 1929616134 2572821512 2894424201 3216026890 3859232268 4824040335 5145643024 5788848402 6432053780 7718464536 9648080670 9969683359 10291286048 11577696804 12864107560 14472121005 15436929072 19296161340 19939366718 20582572096 23155393608 25728215120 28944242010 29909050077 30873858144 38592322680 39878733436 46310787216 49848416795 51456430240 57888484020 59818100154 61747716288 77184645360 79757466872 89727150231 92621574432 99696833590 102912860480 115776968040 119636200308 149545250385 154369290720 159514933744 179454300462 185243148864 199393667180 231553936080 239272400616 299090500770 308738581440 319029867488 358908600924 398787334360 448635751155 463107872160 478544801232 598181001540 638059734976 717817201848 797574668720 897271502310 926215744320 957089602464 1196362003080 1435634403696 1595149337440 1794543004620 1914179204928 2392724006160 2871268807392 3190298674880 3589086009240 4785448012320 5742537614784 7178172018480 9570896024640 14356344036960 28712688073920
• Sum of all divisors σ(n): 101945479908480
• Sum of proper divisors (its aliquot sum) s(n): 73232791834560
• 28712688073920 is an abundant number, because the sum of its proper divisors (73232791834560) is greater than itself. Its abundance is 44520103760640

Bases of 28712688073920

• Binary: 110100001110100110001100100101011110011000000₂
• Hexadecimal: 0x1A1D3192BCC0
• Base-36: A6EFD50W0

Squares and roots of 28712688073920

• 28712688073920 squared (28712688073920²) is 824418456430227799384166400
• 28712688073920 cubed (28712688073920³) is 23671269981863736871966600913760780288000
• The square root of 28712688073920 is 5358422.1627191713
• The cube root of 28712688073920 is 30621.3700361255

Scales and comparisons

• 28,712,688,073,920 seconds is equal to 912,974 years, 34 weeks, 4 days, 15 hours, 12 minutes.
• To count from 1 to 28,712,688,073,920 would take you about two million, two hundred eighty-two thousand, four hundred thirty-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 28712688073920 cubic inches would be around 2551.8 feet tall.

Recreational maths with 28712688073920

• 28712688073920 backwards is 02937088621782
• The number of decimal digits it has is: 14
• The sum of 28712688073920's digits is 63
• More coming soon!