990428558427

Names of 990428558427

• Cardinal: 990428558427 can be written as Nine hundred ninety billion, four hundred twenty-eight million, five hundred fifty-eight thousand, four hundred twenty-seven.

Scientific notation

• Scientific notation: 9.90428558427 × 10¹¹

Factors of 990428558427

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 137

Divisors of 990428558427

• Number of divisors d(n): 378
• Complete list of divisors:
  1 3 7 9 11 21 27 33 43 49 63 73 77 81 99 121 129 147 189 219 231 243 297 301 363 387 441 473 511 539 567 657 693 729 803 847 891 903 1089 1161 1323 1419 1533 1617 1701 1971 2079 2107 2409 2541 2673 2709 3139 3267 3311 3483 3577 3969 4257 4599 4851 5103 5203 5329 5621 5913 5929 6237 6321 7227 7623 8019 8127 8833 9417 9801 9933 10449 10731 11907 12771 13797 14553 15609 15987 16863 17739 17787 18711 18963 21681 21973 22869 23177 24381 26499 28251 29403 29799 31347 32193 34529 35721 36421 37303 38313 39347 41391 43659 46827 47961 50589 53217 53361 56133 56889 58619 61831 65043 65919 68607 69531 73143 79497 84753 88209 89397 96579 103587 109263 111909 114939 118041 124173 130977 140481 143883 151767 153811 160083 170667 175857 185493 195129 197757 205821 208593 219429 229147 238491 241703 254259 254947 261121 268191 289737 310761 327789 335727 344817 354123 372519 379819 392931 410333 421443 431649 432817 455301 461433 480249 512001 527571 556479 585387 593271 617463 625779 644809 687441 715473 725109 762777 764841 783363 804573 869211 932283 983367 1007181 1062369 1139457 1230999 1264329 1294947 1298451 1365903 1384299 1440747 1536003 1582713 1604029 1669437 1691921 1779813 1877337 1934427 2062323 2146419 2175327 2288331 2294523 2350089 2413719 2520617 2607633 2658733 2796849 2872331 2950101 3021543 3187107 3418371 3692997 3792987 3884841 3895353 4097709 4152897 4322241 4513663 4748139 4812087 5008311 5075763 5339439 5632011 5803281 6186969 6439257 6525981 6883569 7050267 7561851 7976199 8390547 8616993 8850303 9064629 9561321 10255113 11078991 11228203 11686059 12458691 13540989 14244417 14436261 15024933 15227289 16018317 16896033 17409843 17644319 18560907 18611131 19577943 20650707 21150801 22685553 23928597 25171641 25850979 26550909 27193887 27726787 28683963 30765339 31595641 33236973 33684609 35058177 37376073 40622967 42733251 43308783 45074799 45681867 52229529 52932957 55682721 55833393 58733829 61952121 63452403 68056659 71785791 77552937 83180361 92296017 94786923 99710919 101053827 105174531 112128219 121868901 123510233 129926349 137045601 156688587 158798871 167048163 167500179 176201487 185856363 190357209 194087509 204169977 215357373 232658811 249541083 276888051 284360769 299132757 303161481 315523593 365606703 370530699 389779047 411136803 470065761 476396613 502500537 582262527 612509931 646072119 697976433 748623249 853082307 909484443 1096820109 1111592097 1169337141 1233410409 1358612563 1429189839 1507501611 1746787581 1837529793 1938216357 2093929299 2245869747 2559246921 2728453329 3290460327 3334776291 4075837689 4287569517 4522504833 5240362743 6737609241 7677740763 8185359987 10004328873 12227513067 12862708551 13567514499 15721088229 20212827723 23033222289 30012986619 36682539201 47163264687 90038959857 110047617603 141489794061 330142852809 990428558427
• Sum of all divisors σ(n): 1969855197156
• Sum of proper divisors (its aliquot sum) s(n): 979426638729
• 990428558427 is a deficient number, because the sum of its proper divisors (979426638729) is less than itself. Its deficiency is 11001919698

Bases of 990428558427

• Binary: 1110011010011010001001000111010001011011₂
• Hexadecimal: 0xE69A24745B
• Base-36: CMZVLAOR

Squares and roots of 990428558427

• 990428558427 squared (990428558427²) is 980948729347785352714329
• 990428558427 cubed (990428558427³) is 971559635898724434813878603016600483
• The square root of 990428558427 is 995202.7725177417
• The cube root of 990428558427 is 9967.9928583447

Scales and comparisons

• 990,428,558,427 seconds is equal to 31,492 years, 29 weeks, 2 days, 12 hours, 27 seconds.
• To count from 1 to 990,428,558,427 would take you about sixty-two thousand, nine hundred eighty-five 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 990428558427 cubic inches would be around 830.7 feet tall.

Recreational maths with 990428558427

• 990428558427 backwards is 724855824099
• 990428558427 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 990428558427's digits is 63
• More coming soon!