6438193920

Names of 6438193920

• Cardinal: 6438193920 can be written as Six billion, four hundred thirty-eight million, one hundred ninety-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.43819392 × 10⁹

Factors of 6438193920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 411

Divisors of 6438193920

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 43 45 48 60 64 72 80 82 86 90 96 120 123 128 129 144 160 164 172 180 192 205 215 240 246 256 258 288 317 320 328 344 360 369 384 387 410 430 480 492 516 576 615 634 640 645 656 688 720 738 768 774 820 860 951 960 984 1032 1152 1230 1268 1280 1290 1312 1376 1440 1476 1548 1585 1640 1720 1763 1845 1902 1920 1935 1968 2064 2304 2460 2536 2580 2624 2752 2853 2880 2952 3096 3170 3280 3440 3526 3690 3804 3840 3870 3936 4128 4755 4920 5072 5160 5248 5289 5504 5706 5760 5904 6192 6340 6560 6880 7052 7380 7608 7740 7872 8256 8815 9510 9840 10144 10320 10496 10578 11008 11412 11520 11808 12384 12680 12997 13120 13631 13760 14104 14265 14760 15216 15480 15744 15867 16512 17630 19020 19680 20288 20640 21156 22824 23616 24768 25360 25994 26240 26445 27262 27520 28208 28530 29520 30432 30960 31488 31734 33024 35260 38040 38991 39360 40576 40893 41280 42312 45648 47232 49536 50720 51988 52480 52890 54524 55040 56416 57060 59040 60864 61920 63468 64985 68155 70520 76080 77982 78720 79335 81152 81786 82560 84624 91296 94464 99072 101440 103976 105780 109048 112832 114120 116973 118080 121728 122679 123840 126936 129970 136310 141040 152160 155964 157440 158670 163572 165120 169248 182592 194955 202880 204465 207952 211560 218096 225664 228240 233946 236160 243456 245358 247680 253872 259940 272620 282080 304320 311928 317340 327144 338496 365184 389910 405760 408930 415904 423120 436192 451328 456480 467892 472320 490716 495360 507744 519880 545240 558871 564160 584865 608640 613395 623856 634680 654288 676992 730368 779820 817860 831808 846240 872384 912960 935784 981432 1015488 1039760 1090480 1117742 1128320 1169730 1217280 1226790 1247712 1269360 1308576 1353984 1559640 1635720 1663616 1676613 1692480 1744768 1825920 1871568 1962864 2030976 2079520 2180960 2235484 2256640 2339460 2453580 2495424 2538720 2617152 2794355 3119280 3271440 3327232 3353226 3384960 3489536 3651840 3743136 3925728 4061952 4159040 4361920 4470968 4678920 4907160 4990848 5029839 5077440 5234304 5588710 6238560 6542880 6706452 6769920 7486272 7851456 8318080 8383065 8723840 8941936 9357840 9814320 9981696 10059678 10154880 10468608 11177420 12477120 13085760 13412904 14972544 15702912 16636160 16766130 17447680 17883872 18715680 19628640 20119356 20309760 22354840 24954240 25149195 26171520 26825808 29945088 31405824 33532260 35767744 37431360 39257280 40238712 44709680 49908480 50298390 52343040 53651616 67064520 71535488 74862720 78514560 80477424 89419360 100596780 107303232 134129040 143070976 149725440 157029120 160954848 178838720 201193560 214606464 268258080 321909696 357677440 402387120 429212928 536516160 643819392 715354880 804774240 1073032320 1287638784 1609548480 2146064640 3219096960 6438193920
• Sum of all divisors σ(n): 23423111712
• Sum of proper divisors (its aliquot sum) s(n): 16984917792
• 6438193920 is an abundant number, because the sum of its proper divisors (16984917792) is greater than itself. Its abundance is 10546723872

Bases of 6438193920

• Binary: 101111111101111110000101100000000₂
• Hexadecimal: 0x17FBF0B00
• Base-36: 2YH4U80

Squares and roots of 6438193920

• 6438193920 squared (6438193920²) is 41450340951524966400
• 6438193920 cubed (6438193920³) is 266865333096035053404684288000
• The square root of 6438193920 is 80238.3569123895
• The cube root of 6438193920 is 1860.3215538417

Scales and comparisons

• 6,438,193,920 seconds is equal to 204 years, 37 weeks, 1 day, 3 hours, 12 minutes.
• To count from 1 to 6,438,193,920 would take you about four hundred nine 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 6438193920 cubic inches would be around 155 feet tall.

Recreational maths with 6438193920

• 6438193920 backwards is 0293918346
• 6438193920 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6438193920's digits is 45
• More coming soon!