19898403840

Names of 19898403840

• Cardinal: 19898403840 can be written as Nineteen billion, eight hundred ninety-eight million, four hundred three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.989840384 × 10¹⁰

Factors of 19898403840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 20580

Divisors of 19898403840

• Number of divisors d(n): 352
• 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 32 35 36 40 42 45 48 54 56 60 63 64 70 72 80 84 90 96 105 108 112 120 126 128 135 140 144 160 168 180 189 192 210 216 224 240 252 256 270 280 288 315 320 336 360 378 384 420 432 448 480 504 512 540 560 576 630 640 672 720 756 768 840 864 896 945 960 1008 1024 1080 1120 1152 1260 1280 1344 1440 1512 1536 1680 1728 1792 1890 1920 2016 2160 2240 2304 2520 2560 2688 2880 3024 3072 3360 3456 3584 3780 3840 4032 4320 4480 4608 5040 5120 5376 5760 6048 6720 6912 7168 7560 7680 8064 8640 8960 9216 10080 10752 11520 12096 13440 13824 15120 15360 16128 17280 17920 20160 20563 21504 23040 24192 26880 27648 30240 32256 34560 35840 40320 41126 46080 48384 53760 60480 61689 64512 69120 80640 82252 96768 102815 107520 120960 123378 138240 143941 161280 164504 185067 193536 205630 241920 246756 287882 308445 322560 329008 370134 411260 431823 483840 493512 555201 575764 616890 658016 719705 740268 822520 863646 925335 967680 987024 1110402 1151528 1233780 1295469 1316032 1439410 1480536 1645040 1727292 1850670 1974048 2159115 2220804 2303056 2467560 2590938 2632064 2776005 2878820 2961072 3290080 3454584 3701340 3886407 3948096 4318230 4441608 4606112 4935120 5181876 5264128 5552010 5757640 5922144 6477345 6580160 6909168 7402680 7772814 7896192 8636460 8883216 9212224 9870240 10363752 10528256 11104020 11515280 11844288 12954690 13160320 13818336 14805360 15545628 15792384 17272920 17766432 18424448 19432035 19740480 20727504 21056512 22208040 23030560 23688576 25909380 26320640 27636672 29610720 31091256 31584768 34545840 35532864 36848896 38864070 39480960 41455008 44416080 46061120 47377152 51818760 52641280 55273344 59221440 62182512 63169536 69091680 71065728 73697792 77728140 78961920 82910016 88832160 92122240 94754304 103637520 105282560 110546688 118442880 124365024 138183360 142131456 147395584 155456280 157923840 165820032 177664320 184244480 189508608 207275040 221093376 236885760 248730048 276366720 284262912 310912560 315847680 331640064 355328640 368488960 414550080 442186752 473771520 497460096 552733440 568525824 621825120 663280128 710657280 736977920 829100160 947543040 994920192 1105466880 1243650240 1326560256 1421314560 1658200320 1989840384 2210933760 2487300480 2842629120 3316400640 3979680768 4974600960 6632801280 9949201920 19898403840
• Sum of all divisors σ(n): 80821455360
• Sum of proper divisors (its aliquot sum) s(n): 60923051520
• 19898403840 is an abundant number, because the sum of its proper divisors (60923051520) is greater than itself. Its abundance is 41024647680

Bases of 19898403840

• Binary: 10010100010000010011000110000000000₂
• Hexadecimal: 0x4A2098C00
• Base-36: 952ZUO0

Squares and roots of 19898403840

• 19898403840 squared (19898403840²) is 395946475379726745600
• 19898403840 cubed (19898403840³) is 7878702866130420132797743104000
• The square root of 19898403840 is 141061.7022440889
• The cube root of 19898403840 is 2709.8135717761

Scales and comparisons

• 19,898,403,840 seconds is equal to 632 years, 36 weeks, 5 days, 14 hours, 24 minutes.
• To count from 1 to 19,898,403,840 would take you about one thousand, two hundred sixty-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 19898403840 cubic inches would be around 225.8 feet tall.

Recreational maths with 19898403840

• 19898403840 backwards is 04830489891
• 19898403840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19898403840's digits is 54
• More coming soon!