161643216800

Names of 161643216800

• Cardinal: 161643216800 can be written as One hundred sixty-one billion, six hundred forty-three million, two hundred sixteen thousand, eight hundred.

Scientific notation

• Scientific notation: 1.616432168 × 10¹¹

Factors of 161643216800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4258

Divisors of 161643216800

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 61 65 80 100 104 122 130 160 200 208 244 260 305 325 400 416 488 520 610 650 793 800 976 1040 1220 1300 1525 1586 1952 2080 2440 2600 3050 3172 3721 3965 4177 4880 5200 6100 6344 7442 7930 8354 9760 10400 12200 12688 14884 15860 16708 18605 19825 20885 24400 25376 29768 31720 33416 37210 39650 41770 48373 48800 54301 59536 63440 66832 74420 79300 83540 93025 96746 104425 108602 119072 126880 133664 148840 158600 167080 186050 193492 208850 217204 241865 254797 271505 297680 317200 334160 372100 386984 417700 434408 483730 509594 543010 595360 634400 668320 744200 773968 835400 868816 967460 1019188 1086020 1209325 1273985 1357525 1488400 1547936 1670800 1737632 1934920 2038376 2172040 2418650 2547970 2715050 2976800 3312361 3341600 3869840 4076752 4344080 4837300 5095940 5430100 6369925 6624722 7739680 8153504 8688160 9674600 10191880 10860200 12739850 13249444 15542617 16561805 19349200 20383760 21720400 25479700 26498888 31085234 33123610 38698400 40767520 43440800 50959400 52997776 62170468 66247220 77713085 82809025 101918800 105995552 124340936 132494440 155426170 165618050 202054021 203837600 248681872 264988880 310852340 331236100 388565425 404108042 497363744 529977760 621704680 662472200 777130850 808216084 1010270105 1243409360 1324944400 1554261700 1616432168 2020540210 2486818720 2649888800 3108523400 3232864336 4041080420 5051350525 6217046800 6465728672 8082160840 10102701050 12434093600 16164321680 20205402100 32328643360 40410804200 80821608400 161643216800
• Sum of all divisors σ(n): 432150535908
• Sum of proper divisors (its aliquot sum) s(n): 270507319108
• 161643216800 is an abundant number, because the sum of its proper divisors (270507319108) is greater than itself. Its abundance is 108864102308

Bases of 161643216800

• Binary: 10010110100010101011111011111110100000₂
• Hexadecimal: 0x25A2AFBFA0
• Base-36: 229A74BK

Squares and roots of 161643216800

• 161643216800 squared (161643216800²) is 26128529537451802240000
• 161643216800 cubed (161643216800³) is 4223499564687525389031045632000000
• The square root of 161643216800 is 402048.7741555743
• The cube root of 161643216800 is 5447.3568733881

Scales and comparisons

• 161,643,216,800 seconds is equal to 5,139 years, 39 weeks, 1 day, 13 hours, 33 minutes, 20 seconds.
• To count from 1 to 161,643,216,800 would take you about ten thousand, two hundred seventy-nine 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 161643216800 cubic inches would be around 453.9 feet tall.

Recreational maths with 161643216800

• 161643216800 backwards is 008612346161
• The number of decimal digits it has is: 12
• The sum of 161643216800's digits is 38
• More coming soon!