121409647551

Names of 121409647551

• Cardinal: 121409647551 can be written as One hundred twenty-one billion, four hundred nine million, six hundred forty-seven thousand, five hundred fifty-one.

Scientific notation

• Scientific notation: 1.21409647551 × 10¹¹

Factors of 121409647551

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 268

Divisors of 121409647551

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 27 53 61 151 159 183 453 477 549 1359 1431 1647 3233 3721 4077 8003 9211 9699 11163 22801 24009 27633 29097 33489 68403 72027 82899 87291 100467 197213 205209 216081 248697 488183 561871 591639 615627 1208453 1390861 1464549 1685613 1774917 3625359 4172583 4393647 5056839 5324751 10876077 12517749 13180941 15170517 29779163 32628231 37553247 73715633 84842521 89337489 221146899 254527563 268012467 663440697 763582689 804037401 1990322091 2290748067 4496653613 13489960839 40469882517 121409647551
• Sum of all divisors σ(n): 187555389840
• Sum of proper divisors (its aliquot sum) s(n): 66145742289
• 121409647551 is a deficient number, because the sum of its proper divisors (66145742289) is less than itself. Its deficiency is 55263905262

Bases of 121409647551

• Binary: 1110001000100100101000011001110111111₂
• Hexadecimal: 0x1C449433BF
• Base-36: 1JRW63LR

Squares and roots of 121409647551

• 121409647551 squared (121409647551²) is 14740302518458040297601
• 121409647551 cubed (121409647551³) is 1789614933561108344513892560825151
• The square root of 121409647551 is 348438.8720435767
• The cube root of 121409647551 is 4951.6628437291

Scales and comparisons

• 121,409,647,551 seconds is equal to 3,860 years, 23 weeks, 3 days, 6 hours, 5 minutes, 51 seconds.
• To count from 1 to 121,409,647,551 would take you about seven thousand, seven hundred twenty 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 121409647551 cubic inches would be around 412.6 feet tall.

Recreational maths with 121409647551

• 121409647551 backwards is 155746904121
• The number of decimal digits it has is: 12
• The sum of 121409647551's digits is 45
• More coming soon!