12388893489

Names of 12388893489

• Cardinal: 12388893489 can be written as Twelve billion, three hundred eighty-eight million, eight hundred ninety-three thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 1.2388893489 × 10¹⁰

Factors of 12388893489

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1220

Divisors of 12388893489

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 23 27 49 63 69 147 161 189 207 343 441 483 621 1029 1127 1187 1323 1449 2401 3087 3381 3561 4347 7203 7889 8309 9261 10143 10683 16807 21609 23667 24927 27301 30429 32049 50421 55223 58163 64827 71001 74781 81903 151263 165669 174489 191107 213003 224343 245709 386561 407141 453789 497007 523467 573321 737127 1159683 1221423 1337749 1491021 1570401 1719963 2849987 3479049 3664269 4013247 5159889 8549961 9364243 10437147 10992807 12039741 19949909 25649883 28092729 36119223 59849727 65549701 76949649 84278187 179549181 196649103 252834561 458847907 538647543 589947309 1376543721 1769841927 4129631163 12388893489
• Sum of all divisors σ(n): 22362531840
• Sum of proper divisors (its aliquot sum) s(n): 9973638351
• 12388893489 is a deficient number, because the sum of its proper divisors (9973638351) is less than itself. Its deficiency is 2415255138

Bases of 12388893489

• Binary: 1011100010011011111000001100110001₂
• Hexadecimal: 0x2E26F8331
• Base-36: 5OW0ZE9

Squares and roots of 12388893489

• 12388893489 squared (12388893489²) is 153484681881786593121
• 12388893489 cubed (12388893489³) is 1901505376026502191204249089169
• The square root of 12388893489 is 111305.4063781271
• The cube root of 12388893489 is 2313.8977994787

Scales and comparisons

• 12,388,893,489 seconds is equal to 393 years, 48 weeks, 1 day, 23 hours, 18 minutes, 9 seconds.
• To count from 1 to 12,388,893,489 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 12388893489 cubic inches would be around 192.8 feet tall.

Recreational maths with 12388893489

• 12388893489 backwards is 98439888321
• 12388893489 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12388893489's digits is 63
• More coming soon!