13205491290

Names of 13205491290

• Cardinal: 13205491290 can be written as Thirteen billion, two hundred five million, four hundred ninety-one thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.320549129 × 10¹⁰

Factors of 13205491290

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 42719

Divisors of 13205491290

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 31 37 45 54 62 74 90 93 111 135 155 185 186 222 270 279 310 333 370 465 555 558 666 837 930 999 1110 1147 1395 1665 1674 1998 2294 2790 3330 3441 4185 4995 5735 6882 8370 9990 10323 11470 17205 20646 30969 34410 42641 51615 61938 85282 103230 127923 154845 213205 255846 309690 383769 426410 639615 767538 1151307 1279230 1321871 1577717 1918845 2302614 2643742 3155434 3837690 3965613 4733151 5756535 6609355 7888585 7931226 9466302 11513070 11896839 13218710 14199453 15777170 19828065 23665755 23793678 28398906 35690517 39656130 42598359 47331510 48909227 59484195 70997265 71381034 85196718 97818454 118968390 141994530 146727681 178452585 212991795 244546135 293455362 356905170 425983590 440183043 489092270 733638405 880366086 1320549129 1467276810 2200915215 2641098258 4401830430 6602745645 13205491290
• Sum of all divisors σ(n): 37333923840
• Sum of proper divisors (its aliquot sum) s(n): 24128432550
• 13205491290 is an abundant number, because the sum of its proper divisors (24128432550) is greater than itself. Its abundance is 10922941260

Bases of 13205491290

• Binary: 1100010011000110111100111001011010₂
• Hexadecimal: 0x3131BCE5A
• Base-36: 62E7IAI

Squares and roots of 13205491290

• 13205491290 squared (13205491290²) is 174385000210265864100
• 13205491290 cubed (13205491290³) is 2302839601383314036956873689000
• The square root of 13205491290 is 114915.1482181527
• The cube root of 13205491290 is 2363.6591761735

Scales and comparisons

• 13,205,491,290 seconds is equal to 419 years, 46 weeks, 3 days, 8 hours, 1 minute, 30 seconds.
• To count from 1 to 13,205,491,290 would take you about eight hundred thirty-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 13205491290 cubic inches would be around 197 feet tall.

Recreational maths with 13205491290

• 13205491290 backwards is 09219450231
• The number of decimal digits it has is: 11
• The sum of 13205491290's digits is 36
• More coming soon!