21378669375

Names of 21378669375

• Cardinal: 21378669375 can be written as Twenty-one billion, three hundred seventy-eight million, six hundred sixty-nine thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1378669375 × 10¹⁰

Factors of 21378669375

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 402

Divisors of 21378669375

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 5 7 15 19 21 25 35 37 49 57 75 95 105 111 125 133 147 175 185 245 259 285 331 375 399 475 525 555 625 665 703 735 777 875 925 931 993 1225 1295 1425 1655 1813 1875 1995 2109 2317 2375 2625 2775 2793 3325 3515 3675 3885 4375 4625 4655 4921 4965 5439 6125 6289 6475 6951 7125 8275 9065 9975 10545 11585 11875 12247 13125 13875 13965 14763 16219 16625 17575 18375 18867 19425 23125 23275 24605 24825 27195 30625 31445 32375 34447 34755 35625 36741 41375 44023 45325 48657 49875 52725 57925 61235 69375 69825 73815 81095 83125 85729 87875 91875 94335 97125 103341 116375 123025 124125 132069 135975 157225 161875 172235 173775 183705 206875 220115 226625 232693 243285 249375 257187 263625 289625 306175 308161 349125 369075 405475 428645 439375 471675 485625 516705 581875 600103 615125 620625 660345 679875 698079 786125 861175 868875 918525 924483 1100575 1133125 1163465 1216425 1285935 1318125 1448125 1530875 1540805 1628851 1745625 1800309 1845375 2027375 2143225 2358375 2583525 3000515 3075625 3301725 3399375 3490395 3930625 4305875 4344375 4592625 4622415 4886553 5502875 5817325 6082125 6429675 7654375 7704025 8144255 9001545 9226875 10136875 10716125 11401957 11791875 12917625 15002575 16508625 17451975 21529375 22963125 23112075 24432765 27514375 29086625 30410625 32148375 34205871 38520125 40721275 45007725 53580625 57009785 64588125 75012875 82543125 87259875 115560375 122163825 145433125 160741875 171029355 192600625 203606375 225038625 285048925 375064375 436299375 577801875 610819125 855146775 1018031875 1125193125 1425244625 3054095625 4275733875 7126223125 21378669375
• Sum of all divisors σ(n): 44930117760
• Sum of proper divisors (its aliquot sum) s(n): 23551448385
• 21378669375 is an abundant number, because the sum of its proper divisors (23551448385) is greater than itself. Its abundance is 2172779010

Bases of 21378669375

• Binary: 10011111010010001001001101100111111₂
• Hexadecimal: 0x4FA449B3F
• Base-36: 9TKB2V3

Squares and roots of 21378669375

• 21378669375 squared (21378669375²) is 457047504245562890625
• 21378669375 cubed (21378669375³) is 9771067481934797849441162109375
• The square root of 21378669375 is 146214.4636313385
• The cube root of 21378669375 is 2775.4083483159

Scales and comparisons

• 21,378,669,375 seconds is equal to 679 years, 40 weeks, 2 days, 7 hours, 16 minutes, 15 seconds.
• To count from 1 to 21,378,669,375 would take you about one thousand, three hundred fifty-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 21378669375 cubic inches would be around 231.3 feet tall.

Recreational maths with 21378669375

• 21378669375 backwards is 57396687312
• 21378669375 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21378669375's digits is 57
• More coming soon!