389818997820

Names of 389818997820

• Cardinal: 389818997820 can be written as Three hundred eighty-nine billion, eight hundred eighteen million, nine hundred ninety-seven thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.8981899782 × 10¹¹

Factors of 389818997820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2092

Divisors of 389818997820

• Number of divisors d(n): 480
• 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 54 60 63 70 71 81 84 90 105 108 126 135 140 142 162 180 189 210 213 252 270 281 284 315 324 355 378 405 420 426 497 540 562 567 630 639 710 756 810 843 852 945 994 1065 1124 1134 1260 1278 1405 1420 1491 1620 1686 1723 1890 1917 1967 1988 2130 2268 2485 2529 2556 2810 2835 2982 3195 3372 3446 3780 3834 3934 4215 4260 4473 4970 5058 5169 5620 5670 5751 5901 5964 6390 6892 7455 7587 7668 7868 8430 8615 8946 9585 9835 9940 10116 10338 11340 11502 11802 12061 12645 12780 13419 14910 15174 15507 16860 17230 17703 17892 19170 19670 19951 20676 22365 22761 23004 23604 24122 25290 25845 26838 28755 29505 29820 30348 31014 34460 35406 36183 37935 38340 39340 39902 40257 44730 45522 46521 48244 50580 51690 53109 53676 57510 59010 59853 60305 62028 67095 70812 72366 75870 77535 79804 80514 88515 89460 91044 93042 99755 103380 106218 108549 113805 115020 118020 119706 120610 122333 134190 139563 139657 144732 151740 155070 159327 161028 177030 179559 180915 186084 199510 201285 212436 217098 227610 232605 239412 241220 244666 265545 268380 279126 279314 299265 310140 318654 325647 354060 359118 361830 366999 399020 402570 418971 434196 455220 465210 484163 489332 531090 538677 542745 558252 558628 598530 611665 637308 651294 697815 698285 718236 723660 733998 796635 805140 837942 856331 897795 930420 968326 976941 1062180 1077354 1085490 1100997 1197060 1223330 1256913 1302588 1395630 1396570 1452489 1467996 1593270 1616031 1628235 1675884 1712662 1795590 1834995 1936652 1953882 2094855 2154708 2170980 2201994 2420815 2446660 2513826 2568993 2693385 2791260 2793140 2904978 3186540 3232062 3256470 3302991 3389141 3425324 3591180 3669990 3770739 3907764 4189710 4281655 4357467 4403988 4841630 4884705 5027652 5137986 5386770 5504985 5809956 6284565 6464124 6512940 6605982 6778282 7262445 7339980 7541478 7706979 8080155 8379420 8563310 8714934 9683260 9769410 9908973 10167423 10275972 10773540 11009970 11312217 12569130 12844965 13072401 13211964 13556564 14524890 15082956 15413958 16160310 16514955 16945705 17126620 17429868 18853695 19538820 19817946 20334846 21787335 22019940 22624434 23120937 25138260 25689930 26144802 29049780 30502269 30827916 32320620 33029910 33891410 34375573 37707390 38534895 39217203 39635892 40669692 43574670 45248868 46241874 49544865 50837115 51379860 52289604 56561085 61004538 65362005 66059820 67782820 68751146 69362811 75414780 77069790 78434406 87149340 91506807 92483748 99089730 101674230 103126719 113122170 115604685 122009076 130724010 137502292 138725622 152511345 154139580 156868812 171877865 183013614 196086015 198179460 203348460 206253438 226244340 231209370 240629011 261448020 274520421 277451244 305022690 309380157 343755730 346814055 366027228 392172030 412506876 457534035 462418740 481258022 515633595 549040842 610045380 618760314 687511460 693628110 721887033 784344060 915068070 928140471 962516044 1031267190 1098081684 1203145055 1237520628 1372602105 1387256220 1443774066 1546900785 1830136140 1856280942 2062534380 2165661099 2406290110 2745204210 2784421413 2887548132 3093801570 3609435165 3712561884 4331322198 4640702355 4812580220 5490408420 5568842826 6187603140 6496983297 7218870330 8662644396 9281404710 10828305495 11137685652 12993966594 13922107065 14437740660 18562809420 19490949891 21656610990 25987933188 27844214130 32484916485 38981899782 43313221980 55688428260 64969832970 77963799564 97454749455 129939665940 194909498910 389818997820
• Sum of all divisors σ(n): 1423126526976
• Sum of proper divisors (its aliquot sum) s(n): 1033307529156
• 389818997820 is an abundant number, because the sum of its proper divisors (1033307529156) is greater than itself. Its abundance is 643488531336

Bases of 389818997820

• Binary: 101101011000011000001011101110000111100₂
• Hexadecimal: 0x5AC305DC3C
• Base-36: 4Z2W5ZR0

Squares and roots of 389818997820

• 389818997820 squared (389818997820²) is 151958851061389164752400
• 389818997820 cubed (389818997820³) is 59236447030629367500787436439768000
• The square root of 389818997820 is 624354.8652969719
• The cube root of 389818997820 is 7305.0131188917

Scales and comparisons

• 389,818,997,820 seconds is equal to 12,395 years, 1 week, 6 days, 22 hours, 57 minutes.
• To count from 1 to 389,818,997,820 would take you about twenty-four thousand, seven hundred ninety 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 389818997820 cubic inches would be around 608.8 feet tall.

Recreational maths with 389818997820

• 389818997820 backwards is 028799818983
• The number of decimal digits it has is: 12
• The sum of 389818997820's digits is 72
• More coming soon!