164138940

Names of 164138940

• Cardinal: 164138940 can be written as One hundred sixty-four million, one hundred thirty-eight thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.6413894 × 10⁸

Factors of 164138940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 441

Divisors of 164138940

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 173 180 189 210 251 252 270 315 346 378 420 502 519 540 630 692 753 756 865 945 1004 1038 1211 1255 1260 1506 1557 1730 1757 1890 2076 2259 2422 2510 2595 3012 3114 3460 3514 3633 3765 3780 4518 4671 4844 5020 5190 5271 6055 6228 6777 7028 7266 7530 7785 8785 9036 9342 10380 10542 10899 11295 12110 13554 14532 15060 15570 15813 17570 18165 18684 21084 21798 22590 23355 24220 26355 27108 31140 31626 32697 33885 35140 36330 43423 43596 45180 46710 47439 52710 54495 63252 65394 67770 72660 79065 86846 93420 94878 105420 108990 130269 130788 135540 158130 163485 173692 189756 217115 217980 237195 260538 303961 316260 326970 390807 434230 474390 521076 607922 651345 653940 781614 868460 911883 948780 1172421 1215844 1302690 1519805 1563228 1823766 1954035 2344842 2605380 2735649 3039610 3647532 3908070 4559415 4689684 5471298 5862105 6079220 7816140 8206947 9118830 10942596 11724210 13678245 16413894 18237660 23448420 27356490 32827788 41034735 54712980 82069470 164138940
• Sum of all divisors σ(n): 589317120
• Sum of proper divisors (its aliquot sum) s(n): 425178180
• 164138940 is an abundant number, because the sum of its proper divisors (425178180) is greater than itself. Its abundance is 261039240

Bases of 164138940

• Binary: 1001110010001000111110111100₂
• Hexadecimal: 0x9C88FBC
• Base-36: 2PQ2F0

Squares and roots of 164138940

• 164138940 squared (164138940²) is 26941591624323600
• 164138940 cubed (164138940³) is 4422164291129353920984000
• The square root of 164138940 is 12811.6720220275
• The cube root of 164138940 is 547.5249003499

Scales and comparisons

• 164,138,940 seconds is equal to 5 years, 11 weeks, 2 days, 18 hours, 9 minutes.
• To count from 1 to 164,138,940 would take you about seven 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 164138940 cubic inches would be around 45.6 feet tall.

Recreational maths with 164138940

• 164138940 backwards is 049831461
• 164138940 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 164138940's digits is 36
• More coming soon!