12431165985

Names of 12431165985

• Cardinal: 12431165985 can be written as Twelve billion, four hundred thirty-one million, one hundred sixty-five thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 1.2431165985 × 10¹⁰

Factors of 12431165985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8669

Divisors of 12431165985

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 49 63 73 81 105 135 147 189 219 245 315 365 405 441 511 567 657 735 945 1095 1323 1533 1971 2205 2555 2835 3285 3577 3969 4599 5913 6615 7665 8581 9855 10731 13797 17885 19845 22995 25743 29565 32193 41391 42905 53655 60067 68985 77229 96579 128715 160965 180201 206955 231687 289737 300335 386145 420469 482895 540603 626413 695061 901005 1158435 1261407 1448685 1621809 1879239 2102345 2703015 3132065 3475305 3784221 4384891 4865427 5637717 6307035 8109045 9396195 11352663 13154673 16913151 18921105 21924455 24327135 28188585 30694237 34057989 39464019 50739453 56763315 65773365 84565755 92082711 118392057 153471185 170289945 197320095 253697265 276248133 355176171 460413555 591960285 828744399 1381240665 1775880855 2486233197 4143721995 12431165985
• Sum of all divisors σ(n): 26280383976
• Sum of proper divisors (its aliquot sum) s(n): 13849217991
• 12431165985 is an abundant number, because the sum of its proper divisors (13849217991) is greater than itself. Its abundance is 1418052006

Bases of 12431165985

• Binary: 1011100100111101001000101000100001₂
• Hexadecimal: 0x2E4F48A21
• Base-36: 5PL7129

Squares and roots of 12431165985

• 12431165985 squared (12431165985²) is 154533887746621020225
• 12431165985 cubed (12431165985³) is 1921036408885603525307017046625
• The square root of 12431165985 is 111495.1388402203
• The cube root of 12431165985 is 2316.5265839997

Scales and comparisons

• 12,431,165,985 seconds is equal to 395 years, 14 weeks, 1 day, 5 hours, 39 minutes, 45 seconds.
• To count from 1 to 12,431,165,985 would take you about seven hundred ninety 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 12431165985 cubic inches would be around 193 feet tall.

Recreational maths with 12431165985

• 12431165985 backwards is 58956113421
• 12431165985 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12431165985's digits is 45
• More coming soon!