991130385168

Names of 991130385168

• Cardinal: 991130385168 can be written as Nine hundred ninety-one billion, one hundred thirty million, three hundred eighty-five thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 9.91130385168 × 10¹¹

Factors of 991130385168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 246270

Divisors of 991130385168

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 33 36 42 44 48 54 56 63 66 72 77 84 88 99 108 112 121 126 132 144 154 168 176 189 198 216 231 242 252 264 297 308 336 363 378 396 432 462 484 504 528 594 616 693 726 756 792 847 924 968 1008 1089 1188 1232 1331 1386 1452 1512 1584 1694 1848 1936 2079 2178 2376 2541 2662 2772 2904 3024 3267 3388 3696 3993 4158 4356 4752 5082 5324 5544 5808 6534 6776 7623 7986 8316 8712 9317 10164 10648 11088 11979 13068 13552 15246 15972 16632 17424 18634 20328 21296 22869 23958 26136 27951 30492 31944 33264 35937 37268 40656 45738 47916 52272 55902 60984 63888 71874 74536 83853 91476 95832 111804 121968 143748 149072 167706 182952 191664 223608 246247 251559 287496 335412 365904 447216 492494 503118 574992 670824 738741 984988 1006236 1341648 1477482 1723729 1969976 2012472 2216223 2708717 2954964 3447458 3939952 4024944 4432446 5171187 5417434 5909928 6648669 6894916 8126151 8864892 10342374 10834868 11819856 13297338 13789832 15513561 16252302 17729784 18961019 20684748 21669736 24378453 26594676 27579664 29795887 31027122 32504604 35459568 37922038 41369496 43339472 46540683 48756906 53189352 56883057 59591774 62054244 65009208 73135359 75844076 82738992 89387661 93081366 97513812 106378704 113766114 119183548 124108488 130018416 146270718 151688152 170649171 178775322 186162732 195027624 208571209 227532228 238367096 248216976 268162983 292541436 303376304 327754757 341298342 357550644 372325464 390055248 417142418 455064456 476734192 511947513 536325966 585082872 625713627 655509514 682596684 715101288 744650928 804488949 834284836 910128912 983264271 1023895026 1072651932 1170165744 1251427254 1311019028 1365193368 1430202576 1608977898 1668569672 1877140881 1966528542 2047790052 2145303864 2294283299 2502854508 2622038056 2730386736 2949792813 3217955796 3337139344 3754281762 3933057084 4095580104 4290607728 4588566598 5005709016 5244076112 5631422643 5899585626 6435911592 6882849897 7508563524 7866114168 8191160208 8849378439 9177133196 10011418032 11262845286 11799171252 12871823184 13765699794 15017127048 15732228336 17698756878 18354266392 20648549691 22525690572 23598342504 27531399588 30034254096 35397513756 36708532784 41297099382 45051381144 47196685008 55062799176 61945649073 70795027512 82594198764 90102762288 110125598352 123891298146 141590055024 165188397528 247782596292 330376795056 495565192584 991130385168
• Sum of all divisors σ(n): 3576230154240
• Sum of proper divisors (its aliquot sum) s(n): 2585099769072
• 991130385168 is an abundant number, because the sum of its proper divisors (2585099769072) is greater than itself. Its abundance is 1593969383904

Bases of 991130385168

• Binary: 1110011011000011111110010111101100010000₂
• Hexadecimal: 0xE6C3F97B10
• Base-36: CNBHFVO0

Squares and roots of 991130385168

• 991130385168 squared (991130385168²) is 982339440403268034388224
• 991130385168 cubed (991130385168³) is 973626467932608628169142722363461632
• The square root of 991130385168 is 995555.3149714987
• The cube root of 991130385168 is 9970.3467727531

Scales and comparisons

• 991,130,385,168 seconds is equal to 31,514 years, 45 weeks, 5 days, 11 hours, 52 minutes, 48 seconds.
• To count from 1 to 991,130,385,168 would take you about sixty-three thousand and twenty-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 991130385168 cubic inches would be around 830.9 feet tall.

Recreational maths with 991130385168

• 991130385168 backwards is 861583031199
• 991130385168 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 991130385168's digits is 54
• More coming soon!