19918744020

Names of 19918744020

• Cardinal: 19918744020 can be written as Nineteen billion, nine hundred eighteen million, seven hundred forty-four thousand and twenty.

Scientific notation

• Scientific notation: 1.991874402 × 10¹⁰

Factors of 19918744020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 586

Divisors of 19918744020

• Number of divisors d(n): 420
• 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 49 54 60 63 70 81 84 90 98 105 108 126 135 140 147 162 180 189 196 210 243 245 252 270 294 315 324 343 378 405 420 441 486 490 540 567 569 588 630 686 729 735 756 810 882 945 972 980 1029 1134 1138 1215 1260 1323 1372 1458 1470 1620 1701 1707 1715 1764 1890 2058 2205 2268 2276 2401 2430 2646 2835 2845 2916 2940 3087 3402 3414 3430 3645 3780 3969 3983 4116 4410 4802 4860 5103 5121 5145 5292 5670 5690 6174 6615 6804 6828 6860 7203 7290 7938 7966 8505 8535 8820 9261 9604 10206 10242 10290 11340 11380 11907 11949 12005 12348 13230 14406 14580 15363 15435 15876 15932 17010 17070 18522 19845 19915 20412 20484 20580 21609 23814 23898 24010 25515 25605 26460 27783 27881 28812 30726 30870 34020 34140 35721 35847 36015 37044 39690 39830 43218 46089 46305 47628 47796 48020 51030 51210 55566 55762 59535 59745 61452 61740 64827 71442 71694 72030 76815 79380 79660 83349 83643 86436 92178 92610 102060 102420 107541 108045 111132 111524 119070 119490 129654 138267 138915 139405 142884 143388 144060 153630 166698 167286 178605 179235 184356 185220 194481 195167 215082 216090 230445 238140 238980 250047 250929 259308 276534 277830 278810 307260 322623 324135 333396 334572 357210 358470 388962 390334 414801 416745 418215 430164 432180 460890 500094 501858 537705 553068 555660 557620 583443 585501 645246 648270 691335 714420 716940 752787 777924 780668 829602 833490 836430 921780 967869 972405 975835 1000188 1003716 1075410 1166886 1171002 1250235 1254645 1290492 1296540 1366169 1382670 1505574 1613115 1659204 1666980 1672860 1750329 1756503 1935738 1944810 1951670 2074005 2150820 2258361 2333772 2342004 2500470 2509290 2732338 2765340 2903607 2917215 2927505 3011148 3226230 3500658 3513006 3763935 3871476 3889620 3903340 4098507 4148010 4516722 4839345 5000940 5018580 5269509 5464676 5807214 5834430 5855010 6452460 6775083 6830845 7001316 7026012 7527870 8197014 8296020 8751645 8782515 9033444 9678690 10539018 11291805 11614428 11668860 11710020 12295521 13550166 13661690 14518035 15055740 15808527 16394028 17503290 17565030 19357380 20325249 20492535 21078036 22583610 24591042 26347545 27100332 27323380 29036070 31617054 33875415 35006580 35130060 36886563 40650498 40985070 45167220 47425581 49182084 52695090 58072140 61477605 63234108 67750830 73773126 79042635 81300996 81970140 94851162 101626245 105390180 110659689 122955210 135501660 142276743 147546252 158085270 184432815 189702324 203252490 221319378 237127905 245910420 284553486 316170540 331979067 368865630 406504980 442638756 474255810 553298445 569106972 663958134 711383715 737731260 948511620 995937201 1106596890 1327916268 1422767430 1659895335 1991874402 2213193780 2845534860 3319790670 3983748804 4979686005 6639581340 9959372010 19918744020
• Sum of all divisors σ(n): 73292142420
• Sum of proper divisors (its aliquot sum) s(n): 53373398400
• 19918744020 is an abundant number, because the sum of its proper divisors (53373398400) is greater than itself. Its abundance is 33454654380

Bases of 19918744020

• Binary: 10010100011001111111110100111010100₂
• Hexadecimal: 0x4A33FE9D4
• Base-36: 95F3T90

Squares and roots of 19918744020

• 19918744020 squared (19918744020²) is 396756363334285760400
• 19918744020 cubed (19918744020³) is 7902888439561751750938652808000
• The square root of 19918744020 is 141133.7805771531
• The cube root of 19918744020 is 2710.7365825917

Scales and comparisons

• 19,918,744,020 seconds is equal to 633 years, 18 weeks, 3 days, 27 minutes.
• To count from 1 to 19,918,744,020 would take you about one thousand, two hundred sixty-six 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 19918744020 cubic inches would be around 225.9 feet tall.

Recreational maths with 19918744020

• 19918744020 backwards is 02044781991
• 19918744020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19918744020's digits is 45
• More coming soon!