20428839990

Names of 20428839990

• Cardinal: 20428839990 can be written as Twenty billion, four hundred twenty-eight million, eight hundred thirty-nine thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.042883999 × 10¹⁰

Factors of 20428839990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 128

Divisors of 20428839990

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 17 18 26 30 34 39 41 45 47 51 65 78 82 85 90 94 102 117 123 130 141 153 169 170 195 205 221 234 235 246 255 282 306 338 369 390 410 423 442 470 507 510 533 585 611 615 663 697 705 738 765 799 845 846 1014 1066 1105 1170 1222 1230 1326 1394 1410 1521 1530 1598 1599 1681 1690 1833 1845 1927 1989 2091 2115 2210 2397 2535 2665 2873 3042 3055 3198 3315 3362 3485 3666 3690 3854 3978 3995 4182 4230 4794 4797 5043 5070 5330 5499 5746 5781 6110 6273 6630 6929 6970 7191 7605 7943 7990 7995 8405 8619 9061 9165 9594 9635 9945 10086 10387 10455 10998 11562 11985 12546 13858 14365 14382 15129 15210 15886 15990 16810 17238 17343 18122 18330 19270 19890 20774 20787 20910 21853 23829 23970 23985 25051 25215 25857 27183 27495 28577 28730 28905 30258 31161 31365 32759 34645 34686 35955 39715 41574 43095 43706 45305 47658 47970 50102 50430 51714 51935 54366 54990 57154 57810 62322 62361 62730 65518 65559 69290 71487 71910 75153 75645 79007 79430 81549 85731 86190 86715 90610 93483 98277 103870 103935 109265 117793 119145 124722 125255 129285 131118 135031 135915 142885 142974 150306 151290 155805 158014 163098 163795 171462 173430 186966 196554 196677 207870 218530 225459 235586 237021 238290 250510 257193 258570 270062 271830 284089 285770 294831 311610 311805 325663 327590 327795 353379 357435 371501 375765 393354 395035 405093 407745 425867 428655 450918 467415 474042 491385 514386 568178 588965 589662 623610 651326 655590 675155 706758 711063 714870 743002 751530 790070 810186 815490 851734 852267 857310 934830 976989 982770 983385 1027091 1060137 1114503 1127295 1177930 1185105 1215279 1277601 1285965 1343119 1350310 1420445 1422126 1474155 1628315 1704534 1766895 1857505 1953978 1966770 2025465 2054182 2120274 2129335 2229006 2254590 2370210 2430558 2555202 2556801 2571930 2686238 2840890 2930967 2948310 3081273 3256630 3343509 3533790 3555315 3715010 3832803 4029357 4050930 4258670 4261335 4829513 4884945 5113602 5135455 5300685 5536271 5572515 5861934 6076395 6162546 6388005 6687018 6715595 7110630 7665606 8058714 8522670 9243819 9659026 9769890 10270910 10601370 11072542 11145030 12088071 12152790 12776010 12784005 13352183 13431190 14488539 14654835 15406365 16608813 16717545 17460547 18487638 19164015 20146785 24147565 24176142 25568010 26704366 27681355 28977078 29309670 30812730 33217626 33435090 34921094 38328030 40056549 40293570 43465617 46219095 48295130 49826439 52381641 55362710 60440355 66760915 72442695 80113098 83044065 86931234 87302735 92438190 99652878 104763282 120169647 120880710 133521830 144885390 157144923 166088130 174605470 200282745 217328085 226987111 240339294 249132195 261908205 314289846 400565490 434656170 453974222 498264390 523816410 600848235 680961333 785724615 1134935555 1201696470 1361922666 1571449230 2042883999 2269871110 3404806665 4085767998 6809613330 10214419995 20428839990
• Sum of all divisors σ(n): 63747912384
• Sum of proper divisors (its aliquot sum) s(n): 43319072394
• 20428839990 is an abundant number, because the sum of its proper divisors (43319072394) is greater than itself. Its abundance is 22890232404

Bases of 20428839990

• Binary: 10011000001101001110101110000110110₂
• Hexadecimal: 0x4C1A75C36
• Base-36: 9DUSXTI

Squares and roots of 20428839990

• 20428839990 squared (20428839990²) is 417337503337023200100
• 20428839990 cubed (20428839990³) is 8525721077498137997760651999000
• The square root of 20428839990 is 142929.4930726335
• The cube root of 20428839990 is 2733.6814278899

Scales and comparisons

• 20,428,839,990 seconds is equal to 649 years, 29 weeks, 5 days, 21 hours, 46 minutes, 30 seconds.
• To count from 1 to 20,428,839,990 would take you about one thousand, two hundred ninety-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 20428839990 cubic inches would be around 227.8 feet tall.

Recreational maths with 20428839990

• 20428839990 backwards is 09993882402
• The number of decimal digits it has is: 11
• The sum of 20428839990's digits is 54
• More coming soon!