16491387731657707089

Names of 16491387731657707089

• Cardinal: 16491387731657707089 can be written as Sixteen quintillion, four hundred ninety-one quadrillion, three hundred eighty-seven trillion, seven hundred thirty-one billion, six hundred fifty-seven million, seven hundred seven thousand and eighty-nine.

Scientific notation

• Scientific notation: 1.6491387731657707089 × 10¹⁹

Factors of 16491387731657707089

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 75

Divisors of 16491387731657707089

• Number of divisors d(n): 245
• Complete list of divisors:
  1 3 9 13 27 39 59 81 117 169 177 351 507 531 767 1053 1521 1593 2197 2301 3481 4563 4779 6591 6903 9971 10443 13689 19773 20709 28561 29913 31329 45253 59319 62127 85683 89739 93987 129623 135759 177957 205379 257049 269217 281961 371293 388869 407277 588289 616137 771147 807651 1113879 1166607 1221831 1685099 1764867 1848411 2313441 2669927 3341637 3499821 3665493 4826809 5055297 5294601 5545233 7647757 8009781 10024911 10499463 12117361 14480427 15165891 15883803 16635699 21906287 22943271 24029343 30074733 34709051 36352083 43441281 45497673 47651409 65718861 68829813 72088029 99420841 104127153 109056249 130323843 136493019 157525693 197156583 206489439 216264087 284781731 298262523 312381459 327168747 390971529 451217663 472577079 591469749 619468317 714924299 854345193 894787569 937144377 981506241 1292470933 1353652989 1417731237 1774409247 2047834009 2144772897 2563035579 2684362707 2811433131 3877412799 4060958967 4253193711 5865829619 6143502027 6434318691 7689106737 8053088121 9294015887 11632238397 12182876901 12759581133 16802122129 17597488857 18430506081 19302956073 23067320211 26621842117 27882047661 34896715191 36548630703 42180533641 50406366387 52792466571 55291518243 57908868219 76255785047 79865526351 83646142983 104690145573 120822206531 126541600923 151219099161 158377399713 165874554729 228767355141 239596579053 250938428949 346083947521 362466619593 379624802769 453657297483 475132199139 548346937333 686302065423 718789737159 752815286847 991325205611 1038251842563 1087399858779 1138874408307 1360971892449 1570688684903 1645040811999 2058906196269 2156369211477 2973975616833 3114755527689 3262199576337 3416623224921 4499091317773 4712066054709 4935122435997 6176718588807 7128510185329 8921926850499 9344266583067 9786598729011 13497273953319 14136198164127 14805367307991 20418952903739 21385530555987 26765780551497 28032799749201 40491821859957 42408594492381 44416101923973 58488187131049 61256858711217 64156591667961 80297341654491 92670632409277 121475465579871 127225783477143 175464561393147 183770576133651 192469775003883 265446387748607 278011897227831 364426396739613 526393684179441 551311728400953 577409325011649 796339163245821 834035691683493 1204718221320601 1579181052538323 1653935185202859 2389017489737463 2502107075050479 3450803040731891 3614154663961803 4737543157614969 7167052469212389 7506321225151437 10352409122195673 10842463991885409 15661336877167813 21501157407637167 31057227366587019 32527391975656227 46984010631503439 93171682099761057 97582175926968681 140952031894510317 203597379403181569 279515046299283171 422856095683530951 610792138209544707 1268568287050592853 1832376414628634121 5497129243885902363 16491387731657707089
• Sum of all divisors σ(n): 27148364495885990863
• Sum of proper divisors (its aliquot sum) s(n): 10656976764228283774
• 16491387731657707089 is a deficient number, because the sum of its proper divisors (10656976764228283774) is less than itself. Its deficiency is 5834410967429423315

Bases of 16491387731657707089

• Binary: 1110010011011101001011011100010001001110101100010100111001010001₂
• Hexadecimal: 0xE4DD2DC44EB14E51
• Base-36: 3HAKT1ZI7S029

Squares and roots of 16491387731657707089

• 16491387731657707089 squared (16491387731657707089²) is 271965869315870333597685228732920853921
• 16491387731657707089 cubed (16491387731657707089³) is 4485094600665367263294838769738012095075051176550775145969
• 16491387731657707089 is a perfect square number. Its square root is 4060958967
• The cube root of 16491387731657707089 is 2545378.6723997249
• Being both a perfect square and a perfect cube, 16491387731657707089 is also a perfect sixth number.

Scales and comparisons

• 16,491,387,731,657,707,089 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 16,491,387,731,657,707,089 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 16491387731657707089 cubic inches would be around 212114.9 feet tall.

Recreational maths with 16491387731657707089

• 16491387731657707089 backwards is 98070775613778319461
• The number of decimal digits it has is: 20
• The sum of 16491387731657707089's digits is 99
• More coming soon!