21438498375

Names of 21438498375

• Cardinal: 21438498375 can be written as Twenty-one billion, four hundred thirty-eight million, four hundred ninety-eight thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1438498375 × 10¹⁰

Factors of 21438498375

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 532

Divisors of 21438498375

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 23 25 35 37 45 49 63 69 75 105 111 115 125 147 161 175 185 207 225 245 259 315 333 345 375 441 457 483 525 555 575 735 777 805 851 875 925 1035 1125 1127 1225 1295 1371 1449 1575 1665 1725 1813 2205 2285 2331 2415 2553 2625 2775 2875 3199 3381 3675 3885 4025 4113 4255 4625 5175 5439 5635 5957 6125 6475 6855 7245 7659 7875 8325 8625 9065 9597 10143 10511 11025 11425 11655 12075 12765 13875 15995 16317 16905 16909 17871 18375 19425 20125 20565 21275 22393 25875 27195 28175 28791 29785 31533 32375 34275 36225 38295 41625 41699 45325 47985 50715 50727 52555 53613 55125 57125 58275 60375 63825 67179 73577 79975 81585 84525 84545 89355 94599 97125 102825 106375 111965 118363 125097 135975 140875 143955 148925 152181 157665 171375 181125 191475 201537 208495 220731 226625 239925 253575 253635 262775 268065 291375 319125 335895 355089 367885 375291 388907 399875 407925 422625 422725 446775 472995 514125 515039 559825 591815 625485 662193 679875 719775 744625 760905 788325 828541 957375 1007685 1042475 1065267 1103655 1166721 1199625 1267875 1268175 1313875 1340325 1545117 1679475 1775445 1839425 1876455 1944535 2039625 2113625 2233875 2364975 2485623 2575195 2722349 2799125 2959075 3127425 3310965 3500163 3598875 3804525 3941625 4142705 4635351 5038425 5212375 5326335 5518275 5833605 6340875 6701625 7456869 7725585 8167047 8397375 8877225 9197125 9382275 9722675 11824875 12428115 12875975 13611745 14795375 15637125 16554825 17500815 19022625 19056443 20713525 23176755 24501141 25192125 26631675 27591375 29168025 37284345 38627925 40835235 44386125 46911375 48613375 57169329 62140575 64379875 68058725 82774125 87504075 95282215 103567625 115883775 122505705 133158375 145840125 171507987 186421725 193139625 204176175 285846645 310702875 340293625 437520375 476411075 579418875 612528525 857539935 932108625 1020880875 1429233225 2382055375 3062642625 4287699675 7146166125 21438498375
• Sum of all divisors σ(n): 48283986816
• Sum of proper divisors (its aliquot sum) s(n): 26845488441
• 21438498375 is an abundant number, because the sum of its proper divisors (26845488441) is greater than itself. Its abundance is 5406990066

Bases of 21438498375

• Binary: 10011111101110101011000011001000111₂
• Hexadecimal: 0x4FDD58647
• Base-36: 9UJXF7R

Squares and roots of 21438498375

• 21438498375 squared (21438498375²) is 459609212574877640625
• 21438498375 cubed (21438498375³) is 9853331356921543864362896484375
• The square root of 21438498375 is 146418.9139933773
• The cube root of 21438498375 is 2777.9949646701

Scales and comparisons

• 21,438,498,375 seconds is equal to 681 years, 35 weeks, 1 day, 18 hours, 26 minutes, 15 seconds.
• To count from 1 to 21,438,498,375 would take you about one thousand, three hundred sixty-three 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 21438498375 cubic inches would be around 231.5 feet tall.

Recreational maths with 21438498375

• 21438498375 backwards is 57389483412
• The number of decimal digits it has is: 11
• The sum of 21438498375's digits is 54
• More coming soon!