12388078857

Names of 12388078857

• Cardinal: 12388078857 can be written as Twelve billion, three hundred eighty-eight million, seventy-eight thousand, eight hundred fifty-seven.

Scientific notation

• Scientific notation: 1.2388078857 × 10¹⁰

Factors of 12388078857

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 98

Divisors of 12388078857

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 11 17 21 29 31 33 51 77 87 93 119 121 187 203 217 231 319 341 357 363 493 527 561 609 651 841 847 899 957 1023 1309 1331 1479 1581 2057 2233 2387 2523 2541 2697 3451 3509 3689 3751 3927 3993 5423 5797 5887 6171 6293 6699 7161 9251 9317 9889 10353 10527 11067 11253 14297 14399 15283 16269 17391 17661 18879 22627 24563 26071 26257 27753 27951 29667 37961 38599 40579 41261 42891 43197 45849 59653 63767 64757 67881 69223 73689 78213 78771 100079 101761 106981 108779 113883 115797 121737 123783 157267 158389 168113 178959 182497 191301 194271 207669 270193 286781 288827 300237 305283 320943 326337 417571 443207 446369 471801 475167 504339 547491 656183 701437 712327 761453 810579 860343 866481 1100869 1119371 1176791 1196569 1252713 1329621 1339107 1729937 1849243 1968549 2007467 2104311 2136981 2284359 3102449 3154591 3302607 3358113 3530373 3589707 4593281 4875277 4910059 5189811 5547729 6022401 7835597 8375983 9307347 9463773 12109559 12944701 13779843 14625831 14730177 19029307 20341673 22082137 23506791 25127949 34126939 34700501 36328677 38834103 53628047 57087921 61025019 66246411 102380817 104101503 133205149 142391711 160884141 242903507 375396329 399615447 427175133 589908517 728710521 1126188987 1769725551 4129359619 12388078857
• Sum of all divisors σ(n): 23503454208
• Sum of proper divisors (its aliquot sum) s(n): 11115375351
• 12388078857 is a deficient number, because the sum of its proper divisors (11115375351) is less than itself. Its deficiency is 1272703506

Bases of 12388078857

• Binary: 1011100010011000110001010100001001₂
• Hexadecimal: 0x2E2631509
• Base-36: 5OVJITL

Squares and roots of 12388078857

• 12388078857 squared (12388078857²) is 153464497767250426449
• 12388078857 cubed (12388078857³) is 1901130300090598714917090488793
• The square root of 12388078857 is 111301.7468730837
• The cube root of 12388078857 is 2313.8470815647

Scales and comparisons

• 12,388,078,857 seconds is equal to 393 years, 46 weeks, 6 days, 13 hours, 57 seconds.
• To count from 1 to 12,388,078,857 would take you about seven hundred eighty-seven 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 12388078857 cubic inches would be around 192.8 feet tall.

Recreational maths with 12388078857

• 12388078857 backwards is 75887088321
• The number of decimal digits it has is: 11
• The sum of 12388078857's digits is 57
• More coming soon!