19997859840

Names of 19997859840

• Cardinal: 19997859840 can be written as Nineteen billion, nine hundred ninety-seven million, eight hundred fifty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.999785984 × 10¹⁰

Factors of 19997859840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 431

Divisors of 19997859840

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 67 70 80 84 96 105 112 120 128 134 140 160 168 192 201 210 224 240 256 268 280 320 335 336 347 384 402 420 448 469 480 512 536 560 640 670 672 694 768 804 840 896 938 960 1005 1024 1041 1072 1120 1280 1340 1344 1388 1407 1536 1608 1680 1735 1792 1876 1920 2010 2048 2082 2144 2240 2345 2429 2560 2680 2688 2776 2814 3072 3216 3360 3470 3584 3752 3840 4020 4096 4164 4288 4480 4690 4858 5120 5205 5360 5376 5552 5628 6144 6432 6720 6940 7035 7168 7287 7504 7680 8040 8192 8328 8576 8960 9380 9716 10240 10410 10720 10752 11104 11256 12145 12288 12864 13440 13880 14070 14336 14574 15008 15360 16080 16656 17152 17920 18760 19432 20480 20820 21440 21504 22208 22512 23249 24290 24576 25728 26880 27760 28140 28672 29148 30016 30720 32160 33312 34304 35840 36435 37520 38864 40960 41640 42880 43008 44416 45024 46498 48580 51456 53760 55520 56280 57344 58296 60032 61440 64320 66624 68608 69747 71680 72870 75040 77728 83280 85760 86016 88832 90048 92996 97160 102912 107520 111040 112560 116245 116592 120064 122880 128640 133248 137216 139494 143360 145740 150080 155456 162743 166560 171520 172032 177664 180096 185992 194320 205824 215040 222080 225120 232490 233184 240128 257280 266496 274432 278988 286720 291480 300160 310912 325486 333120 343040 348735 355328 360192 371984 388640 411648 430080 444160 450240 464980 466368 480256 488229 514560 532992 548864 557976 582960 600320 621824 650972 666240 686080 697470 710656 720384 743968 777280 813715 823296 860160 888320 900480 929960 932736 960512 976458 1029120 1065984 1115952 1165920 1200640 1243648 1301944 1332480 1372160 1394940 1421312 1440768 1487936 1554560 1627430 1646592 1776640 1800960 1859920 1865472 1921024 1952916 2058240 2131968 2231904 2331840 2401280 2441145 2487296 2603888 2664960 2744320 2789880 2842624 2881536 2975872 3109120 3254860 3553280 3601920 3719840 3730944 3842048 3905832 4116480 4263936 4463808 4663680 4802560 4882290 4974592 5207776 5329920 5579760 5763072 5951744 6218240 6509720 7106560 7203840 7439680 7461888 7811664 8232960 8527872 8927616 9327360 9605120 9764580 9949184 10415552 10659840 11159520 11526144 11903488 12436480 13019440 14213120 14407680 14879360 14923776 15623328 17855232 18654720 19210240 19529160 19898368 20831104 21319680 22319040 23806976 24872960 26038880 28815360 29758720 29847552 31246656 35710464 37309440 39058320 41662208 42639360 44638080 47613952 49745920 52077760 57630720 59517440 59695104 62493312 71420928 74618880 78116640 83324416 89276160 95227904 99491840 104155520 119034880 124986624 142841856 149237760 156233280 166648832 178552320 190455808 208311040 238069760 249973248 285683712 298475520 312466560 333297664 357104640 416622080 476139520 499946496 571367424 624933120 666595328 714209280 833244160 952279040 999892992 1249866240 1333190656 1428418560 1666488320 1999785984 2499732480 2856837120 3332976640 3999571968 4999464960 6665953280 9998929920 19997859840
• Sum of all divisors σ(n): 74435963904
• Sum of proper divisors (its aliquot sum) s(n): 54438104064
• 19997859840 is an abundant number, because the sum of its proper divisors (54438104064) is greater than itself. Its abundance is 34440244224

Bases of 19997859840

• Binary: 10010100111111101110010000000000000₂
• Hexadecimal: 0x4A7F72000
• Base-36: 96Q7JEO

Squares and roots of 19997859840

• 19997859840 squared (19997859840²) is 399914398180284825600
• 19997859840 cubed (19997859840³) is 7997432082807286993627643904000
• The square root of 19997859840 is 141413.7894266327
• The cube root of 19997859840 is 2714.3207916743

Scales and comparisons

• 19,997,859,840 seconds is equal to 635 years, 45 weeks, 1 day, 17 hours, 4 minutes.
• To count from 1 to 19,997,859,840 would take you about one thousand, two hundred seventy-one 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 19997859840 cubic inches would be around 226.2 feet tall.

Recreational maths with 19997859840

• 19997859840 backwards is 04895879991
• The number of decimal digits it has is: 11
• The sum of 19997859840's digits is 69
• More coming soon!