728013622209494121020

Names of 728013622209494121020

• Cardinal: 728013622209494121020 can be written as Seven hundred twenty-eight quintillion, thirteen quadrillion, six hundred twenty-two trillion, two hundred nine billion, four hundred ninety-four million, one hundred twenty-one thousand and twenty.

Scientific notation

• Scientific notation: 7.2801362220949412102 × 10²⁰

Factors of 728013622209494121020

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 18732198

Divisors of 728013622209494121020

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 10 13 20 26 52 65 97 130 194 260 388 485 970 1261 1940 2522 3511 5044 6305 7022 12610 14044 17555 25220 35110 45643 70220 91286 182572 228215 340567 449797 456430 681134 899594 912860 1362268 1702835 1799188 2248985 3405670 4427371 4497970 5847361 6811340 8854742 8995940 11694722 17709484 18278773 22136855 23389444 29236805 36557546 43630309 44273710 58473610 73115092 87260618 88547420 91393865 116947220 174521236 182787730 218151545 237624049 365575460 436303090 475248098 567194017 872606180 950496196 1134388034 1188120245 1579237267 1773040981 2268776068 2376240490 2835970085 3158474534 3546081962 4752480980 5671940170 6316949068 7092163924 7896186335 8865204905 11343880340 15792372670 17730409810 20530084471 23049532753 31584745340 35460819620 41060168942 46099065506 64176772003 82120337884 92198131012 102650422355 115247663765 128353544006 153186014899 205300844710 230495327530 256707088012 306372029798 320883860015 410601689420 460990655060 612744059596 641767720030 765930074495 834298036039 1283535440060 1531860148990 1668596072078 1991418193687 3063720297980 3337192144156 3982836387374 4171490180195 6225146884291 7965672774748 8221737259081 8342980360390 9957090968435 12450293768582 16443474518162 16685960720780 19914181936870 24900587537164 31125734421455 32886949036324 39828363873740 41108686295405 62251468842910 80926909495783 82217372590810 106882584368053 124502937685820 161853818991566 164434745181620 213765168736106 323707637983132 404634547478915 427530337472212 534412921840265 797508514130857 809269094957830 1068825843680530 1595017028261714 1618538189915660 2137651687361060 3190034056523428 3987542570654285 7975085141308570 10367610683701141 15950170282617140 20735221367402282 28866519516633391 41470442734804564 51838053418505705 57733039033266782 103676106837011410 115466078066533564 144332597583166955 207352213674022820 288665195166333910 375264753716234083 577330390332667820 750529507432468166 1501059014864936332 1876323768581170415 2800052393113438927 3752647537162340830 5600104786226877854 7505295074324681660 11200209572453755708 14000261965567194635 28000523931134389270 36400681110474706051 56001047862268778540 72801362220949412102 145602724441898824204 182003405552373530255 364006811104747060510 728013622209494121020
• Sum of all divisors σ(n): 1663881880217995474176
• Sum of proper divisors (its aliquot sum) s(n): 935868258008501353156
• 728013622209494121020 is an abundant number, because the sum of its proper divisors (935868258008501353156) is greater than itself. Its abundance is 207854635799007232136

Bases of 728013622209494121020

• Binary: 1001110111011100110111111101000011011111010010010100111111101000111100₂
• Hexadecimal: 0x277737F437D253FA3C
• Base-36: 49N3TMVN1AF96K

Squares and roots of 728013622209494121020

• 728013622209494121020 squared (728013622209494121020²) is 530003834122588031706840855621942405840400
• 728013622209494121020 cubed (728013622209494121020³) is 385850011064505192343489516108905868920807107665398712405208000
• The square root of 728013622209494121020 is 26981727561.6201810507
• The cube root of 728013622209494121020 is 8995939.0000000011

Scales and comparisons

• 728,013,622,209,494,121,020 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 728,013,622,209,494,121,020 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 728013622209494121020 cubic inches would be around 749661.6 feet tall.

Recreational maths with 728013622209494121020

• 728013622209494121020 backwards is 020121494902226310827
• 728013622209494121020 is a Harshad number.
• The number of decimal digits it has is: 21
• The sum of 728013622209494121020's digits is 65
• More coming soon!