18108395378640

Names of 18108395378640

• Cardinal: 18108395378640 can be written as Eighteen trillion, one hundred eight billion, three hundred ninety-five million, three hundred seventy-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.810839537864 × 10¹³

Factors of 18108395378640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 171092188

Divisors of 18108395378640

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 49 54 56 60 63 70 72 80 84 90 98 105 108 112 120 126 135 140 144 147 168 180 189 196 210 216 240 245 252 270 280 294 315 336 360 378 392 420 432 441 490 504 540 560 588 630 720 735 756 784 840 882 945 980 1008 1080 1176 1260 1323 1470 1512 1680 1764 1890 1960 2160 2205 2352 2520 2646 2940 3024 3528 3780 3920 4410 5040 5292 5880 6615 7056 7560 8820 10584 11760 13230 15120 17640 21168 26460 35280 52920 105840 171092171 342184342 513276513 684368684 855460855 1026553026 1197645197 1368737368 1539829539 1710921710 2053106052 2395290394 2566382565 2737474736 3079659078 3421843420 3592935591 4106212104 4619488617 4790580788 5132765130 5988225985 6159318156 6843686840 7185871182 7699147695 8212424208 8383516379 9238977234 9581161576 10265530260 10778806773 11976451970 12318636312 13687373680 14371742364 15398295390 16767032758 17964677955 18477954468 19162323152 20531060520 21557613546 23097443085 23952903940 24637272624 25150549137 28743484728 30796590780 32336420319 33534065516 35929355910 36955908936 41062121040 41917581895 43115227092 46194886170 47905807880 50301098274 53894033865 57486969456 61593181560 64672840638 67068131032 71858711820 73911817872 75451647411 83835163790 86230454184 92389772340 95811615760 100602196548 107788067730 123186363120 125752745685 129345681276 134136262064 143717423640 150903294822 161682101595 167670327580 172460908368 184779544680 201204393096 215576135460 226354942233 251505491370 258691362552 287434847280 301806589644 323364203190 335340655160 369559089360 377258237055 402408786192 431152270920 452709884466 503010982740 517382725104 603613179288 646728406380 670681310320 754516474110 862304541840 905419768932 1006021965480 1131774711165 1207226358576 1293456812760 1509032948220 1810839537864 2012043930960 2263549422330 2586913625520 3018065896440 3621679075728 4527098844660 6036131792880 9054197689320 18108395378640
• Sum of all divisors σ(n): 72556768301760
• Sum of proper divisors (its aliquot sum) s(n): 54448372923120
• 18108395378640 is an abundant number, because the sum of its proper divisors (54448372923120) is greater than itself. Its abundance is 36339977544480

Bases of 18108395378640

• Binary: 100000111100000110000011110010101011111010000₂
• Hexadecimal: 0x1078307957D0
• Base-36: 6F2VR2AC0

Squares and roots of 18108395378640

• 18108395378640 squared (18108395378640²) is 327913983189150508968249600
• 18108395378640 cubed (18108395378640³) is 5937996057773847725588054931130028544000
• The square root of 18108395378640 is 4255396.0307637641
• The cube root of 18108395378640 is 26259.9154093821

Scales and comparisons

• 18,108,395,378,640 seconds is equal to 575,790 years, 49 weeks, 6 days, 11 hours, 24 minutes.
• To count from 1 to 18,108,395,378,640 would take you about one million, four hundred thirty-nine thousand, four hundred seventy-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 18108395378640 cubic inches would be around 2188.3 feet tall.

Recreational maths with 18108395378640

• 18108395378640 backwards is 04687359380181
• 18108395378640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18108395378640's digits is 63
• More coming soon!