18997740757840

Names of 18997740757840

• Cardinal: 18997740757840 can be written as Eighteen trillion, nine hundred ninety-seven billion, seven hundred forty million, seven hundred fifty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899774075784 × 10¹³

Factors of 18997740757840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16840

Divisors of 18997740757840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 67 73 80 104 130 134 146 208 227 260 268 292 335 365 454 520 536 584 670 730 871 908 949 1040 1072 1135 1168 1340 1460 1742 1816 1898 2270 2680 2920 2951 3484 3632 3796 4355 4540 4745 4891 5360 5840 5902 6968 7592 8710 9080 9490 9782 11804 13936 14755 15184 15209 16453 16571 17420 18160 18980 19564 23608 24455 29510 30418 32906 33142 34840 37960 39128 47216 48910 59020 60836 63583 65812 66284 69680 75920 76045 78256 82265 82855 97820 118040 121672 127166 131624 132568 152090 164530 165710 195640 197717 213889 215423 236080 243344 254332 263248 265136 304180 317915 329060 331420 391280 395434 427778 430846 508664 608360 635830 658120 662840 790868 855556 861692 988585 1017328 1069445 1077115 1102351 1110257 1201069 1216720 1271660 1316240 1325680 1581736 1711112 1723384 1977170 2138890 2154230 2204702 2220514 2402138 2543320 3163472 3422224 3446768 3734831 3954340 4277780 4308460 4409404 4441028 4804276 5086640 5511755 5551285 6005345 7469662 7908680 8555560 8616920 8818808 8882056 9608552 11023510 11102570 12010690 14330563 14433341 14939324 15613897 15817360 17111120 17233840 17637616 17764112 18674155 19217104 22047020 22205140 24021380 28661126 28866682 29878648 31227794 37348310 44094040 44410280 48042760 48552803 57322252 57733364 59757296 62455588 71652815 72166705 74696620 78069485 80471623 88188080 88820560 96085520 97105606 114644504 115466728 124911176 143305630 144333410 149393240 156138970 160943246 194211212 229289008 230933456 242764015 249822352 250233677 272642663 286611260 288666820 298786480 312277940 321886492 388422424 402358115 485528030 500467354 545285326 573222520 577333640 624555880 643772984 776844848 804716230 971056060 1000934708 1046131099 1090570652 1146445040 1154667280 1249111760 1251168385 1287545968 1363213315 1609432460 1942112120 2001869416 2092262198 2181141304 2502336770 2726426630 3218864920 3253037801 3544354619 3884224240 4003738832 4184524396 4362282608 5004673540 5230655495 5452853260 6437729840 6506075602 7088709238 8369048792 10009347080 10461310990 10905706520 13012151204 14177418476 16265189005 16738097584 17721773095 18267058421 20018694160 20922621980 21811413040 26024302408 28354836952 32530378010 35443546190 36534116842 41845243960 52048604816 56709673904 65060756020 70887092380 73068233684 83690487920 91335292105 130121512040 141774184760 146136467368 182670584210 237471759473 260243024080 283548369520 292272934736 365341168420 474943518946 730682336840 949887037892 1187358797365 1461364673680 1899774075784 2374717594730 3799548151568 4749435189460 9498870378920 18997740757840
• Sum of all divisors σ(n): 49157292231936
• Sum of proper divisors (its aliquot sum) s(n): 30159551474096
• 18997740757840 is an abundant number, because the sum of its proper divisors (30159551474096) is greater than itself. Its abundance is 11161810716256

Bases of 18997740757840

• Binary: 100010100011101000001100101101110001101010000₂
• Hexadecimal: 0x11474196E350
• Base-36: 6QFFWC8R4

Squares and roots of 18997740757840

• 18997740757840 squared (18997740757840²) is 360914153902095137521465600
• 18997740757840 cubed (18997740757840³) is 6856553531667171271060826907011490304000
• The square root of 18997740757840 is 4358639.7829873483
• The cube root of 18997740757840 is 26682.9588022251

Scales and comparisons

• 18,997,740,757,840 seconds is equal to 604,069 years, 20 weeks, 2 days, 18 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,997,740,757,840 would take you about one million, five hundred ten thousand, one hundred seventy-three 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 18997740757840 cubic inches would be around 2223.6 feet tall.

Recreational maths with 18997740757840

• 18997740757840 backwards is 04875704779981
• The number of decimal digits it has is: 14
• The sum of 18997740757840's digits is 76
• More coming soon!