20988126390

Names of 20988126390

• Cardinal: 20988126390 can be written as Twenty billion, nine hundred eighty-eight million, one hundred twenty-six thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.098812639 × 10¹⁰

Factors of 20988126390

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 676

Divisors of 20988126390

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 17 21 22 30 33 34 35 42 49 51 55 66 70 77 85 98 102 105 110 119 121 147 154 165 170 187 210 231 238 242 245 255 294 330 357 363 374 385 462 490 510 539 561 595 605 631 714 726 735 770 833 847 935 1078 1122 1155 1190 1210 1262 1309 1331 1470 1617 1666 1694 1785 1815 1870 1893 2057 2310 2499 2541 2618 2662 2695 2805 3155 3234 3570 3630 3786 3927 3993 4114 4165 4235 4417 4998 5082 5390 5610 5929 6171 6310 6545 6655 6941 7854 7986 8085 8330 8470 8834 9163 9317 9465 10285 10727 11858 12342 12495 12705 13090 13251 13310 13882 14399 16170 17787 18326 18634 18930 19635 19965 20570 20823 21454 22085 22627 24990 25410 26502 27489 27951 28798 29645 30855 30919 32181 34705 35574 39270 39930 41646 43197 44170 45254 45815 46585 48587 53635 54978 55902 59290 61710 61838 64362 65219 66255 67881 69410 71995 75089 76351 86394 88935 91630 92757 93170 97174 100793 104115 107270 113135 117997 130438 132510 135762 137445 139755 143990 145761 150178 152702 154595 158389 160905 177870 185514 195657 201586 208230 215985 225267 226270 229053 235994 242935 274890 279510 291522 302379 309190 316778 321810 326095 339405 340109 353991 375445 381755 391314 431970 450534 458106 463785 475167 485870 503965 525623 534457 589985 604758 652190 678810 680218 707982 728805 750890 763510 791945 825979 839861 927570 950334 978285 1007930 1020327 1051246 1068914 1108723 1126335 1145265 1179970 1297967 1457610 1511895 1576869 1583890 1603371 1651958 1679722 1700545 1769955 1956570 2040654 2217446 2252670 2290530 2375835 2477937 2519583 2595934 2628115 2672285 3023790 3153738 3206742 3326169 3401090 3539910 3741199 3893901 4129895 4199305 4751670 4955874 5039166 5101635 5256230 5344570 5543615 5781853 5879027 6489835 6652338 7482398 7787802 7884345 8016855 8259790 8398610 9085769 10203270 11087230 11223597 11563706 11758054 12389685 12597915 12979670 14277637 15768690 16033710 16630845 17345559 17637081 18171538 18705995 19469505 22447194 24779370 25195830 27257307 28555274 28909265 29395135 33261690 34691118 35274162 37411990 38939010 41153189 42832911 45428845 54514614 56117985 57818530 58790270 63600383 71388185 82306378 85665822 86727795 88185405 90857690 99943459 112235970 123459567 127200766 136286535 142776370 173455590 176370810 190801149 199886918 205765945 214164555 246919134 272573070 299830377 318001915 381602298 411531890 428329110 499717295 599660754 617297835 636003830 699604213 954005745 999434590 1234595670 1399208426 1499151885 1908011490 2098812639 2998303770 3498021065 4197625278 6996042130 10494063195 20988126390
• Sum of all divisors σ(n): 68349920256
• Sum of proper divisors (its aliquot sum) s(n): 47361793866
• 20988126390 is an abundant number, because the sum of its proper divisors (47361793866) is greater than itself. Its abundance is 26373667476

Bases of 20988126390

• Binary: 10011100010111111010110010010110110₂
• Hexadecimal: 0x4E2FD64B6
• Base-36: 9N3SDYU

Squares and roots of 20988126390

• 20988126390 squared (20988126390²) is 440501449362614432100
• 20988126390 cubed (20988126390³) is 9245300094200736641752873119000
• The square root of 20988126390 is 144872.7938227189
• The cube root of 20988126390 is 2758.4041039113

Scales and comparisons

• 20,988,126,390 seconds is equal to 667 years, 18 weeks, 4 days, 3 hours, 6 minutes, 30 seconds.
• To count from 1 to 20,988,126,390 would take you about one thousand, three hundred thirty-four 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 20988126390 cubic inches would be around 229.9 feet tall.

Recreational maths with 20988126390

• 20988126390 backwards is 09362188902
• The number of decimal digits it has is: 11
• The sum of 20988126390's digits is 48
• More coming soon!