164728021689

Names of 164728021689

• Cardinal: 164728021689 can be written as One hundred sixty-four billion, seven hundred twenty-eight million, twenty-one thousand, six hundred eighty-nine.

Scientific notation

• Scientific notation: 1.64728021689 × 10¹¹

Factors of 164728021689

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 272

Divisors of 164728021689

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 7 9 11 21 33 49 63 77 99 121 147 231 251 343 363 441 539 693 753 847 1029 1089 1617 1757 2259 2401 2541 2761 3087 3773 4851 5271 5929 7203 7623 8283 11319 12299 15813 17787 19327 21609 24849 26411 30371 33957 36897 41503 53361 57981 63001 79233 86093 91113 110691 124509 135289 173943 189003 212597 237699 258279 273339 290521 373527 405867 441007 567009 602651 637791 693011 774837 871563 947023 1217601 1323021 1488179 1807953 1913373 2079033 2614689 2841069 3087049 3969063 4464537 4851077 5423859 6237099 6629161 7623121 8523207 9261147 10417253 13393611 14553231 19887483 21609343 22869363 27783441 31251759 33957539 43659693 53361847 59662449 64828029 68608089 72920771 93755277 101872617 151265401 160085541 194484087 218762313 237702773 305617851 373532929 453796203 480256623 656286939 713108319 1120598787 1361388609 1663919411 2139324957 2614730503 3361796361 4991758233 7844191509 14975274699 18303113521 23532574527 54909340563 164728021689
• Sum of all divisors σ(n): 306329788037
• Sum of proper divisors (its aliquot sum) s(n): 141601766348
• 164728021689 is a deficient number, because the sum of its proper divisors (141601766348) is less than itself. Its deficiency is 23126255341

Bases of 164728021689

• Binary: 10011001011010100011100010001010111001₂
• Hexadecimal: 0x265A8E22B9
• Base-36: 23OAT709

Squares and roots of 164728021689

• 164728021689 squared (164728021689²) is 27135321129571654412721
• 164728021689 cubed (164728021689³) is 4469947767570059467378317445505769
• 164728021689 is a perfect square number. Its square root is 405867
• The cube root of 164728021689 is 5481.7912618941

Scales and comparisons

• 164,728,021,689 seconds is equal to 5,237 years, 43 weeks, 5 days, 7 hours, 48 minutes, 9 seconds.
• To count from 1 to 164,728,021,689 would take you about ten thousand, four 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 164728021689 cubic inches would be around 456.8 feet tall.

Recreational maths with 164728021689

• 164728021689 backwards is 986120827461
• The number of decimal digits it has is: 12
• The sum of 164728021689's digits is 54
• More coming soon!