1638973943459307

Names of 1638973943459307

• Cardinal: 1638973943459307 can be written as One quadrillion, six hundred thirty-eight trillion, nine hundred seventy-three billion, nine hundred forty-three million, four hundred fifty-nine thousand, three hundred seven.

Scientific notation

• Scientific notation: 1.638973943459307 × 10¹⁵

Factors of 1638973943459307

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1006265

Divisors of 1638973943459307

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 7 9 13 21 27 39 63 81 91 117 189 273 351 567 819 1053 2457 7371 327689 678553 983067 2035659 2293823 2949201 4259957 4749871 6106977 6881469 8821189 8847603 12779871 14249613 18320931 20644407 26463567 26542809 29819699 38339613 42748839 54962793 61748323 61933221 79390701 89459097 115018839 128246517 185244969 185799663 238172103 268377291 345056517 384739551 555734907 714516309 805131873 1667204721 2415395619 5001614163 222354354017 667063062051 1556480478119 2001189186153 2890606602221 4669441434357 6003567558459 8671819806663 14008324303071 18010702675377 20234246215547 26015459419989 42024972909213 60702738646641 78046378259967 126074918727639 182108215939923 234139134779901 546324647819769 1638973943459307
• Sum of all divisors σ(n): 3013359842243520
• Sum of proper divisors (its aliquot sum) s(n): 1374385898784213
• 1638973943459307 is a deficient number, because the sum of its proper divisors (1374385898784213) is less than itself. Its deficiency is 264588044675094

Bases of 1638973943459307

• Binary: 101110100101010001101011011101100100010110111101011₂
• Hexadecimal: 0x5D2A35BB22DEB
• Base-36: G4YU8GVROR

Squares and roots of 1638973943459307

• 1638973943459307 squared (1638973943459307²) is 2686235587338551658885964920249
• 1638973943459307 cubed (1638973943459307³) is 4402670133640993697187229059488119961431807443
• The square root of 1638973943459307 is 40484243.1503826807
• The cube root of 1638973943459307 is 117902.7721422411

Scales and comparisons

• 1,638,973,943,459,307 seconds is equal to 52,114,301 years, 37 weeks, 4 days, 1 hour, 48 minutes, 27 seconds.
• To count from 1 to 1,638,973,943,459,307 would take you about one hundred fifty-six million, three hundred forty-two thousand, nine hundred five 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 1638973943459307 cubic inches would be around 9825.2 feet tall.

Recreational maths with 1638973943459307

• 1638973943459307 backwards is 7039543493798361
• 1638973943459307 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1638973943459307's digits is 81
• More coming soon!