121921699136

Names of 121921699136

• Cardinal: 121921699136 can be written as One hundred twenty-one billion, nine hundred twenty-one million, six hundred ninety-nine thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 1.21921699136 × 10¹¹

Factors of 121921699136

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 146

Divisors of 121921699136

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 16 32 43 64 86 101 172 202 344 404 688 808 1376 1616 1849 2752 3232 3698 4343 6464 7396 8686 10201 14792 17372 20402 29584 34744 40804 59168 69488 81608 118336 138976 163216 186749 277952 326432 373498 438643 652864 746996 877286 1030301 1493992 1754572 2060602 2987984 3509144 4121204 5975968 7018288 8242408 11951936 14036576 16484816 18861649 28073152 32969632 37723298 44302943 65939264 75446596 88605886 150893192 177211772 301786384 354423544 603572768 708847088 1207145536 1417694176 1905026549 2835388352 3810053098 7620106196 15240212392 30480424784 60960849568 121921699136
• Sum of all divisors σ(n): 250172648244
• Sum of proper divisors (its aliquot sum) s(n): 128250949108
• 121921699136 is an abundant number, because the sum of its proper divisors (128250949108) is greater than itself. Its abundance is 6329249972

Bases of 121921699136

• Binary: 1110001100011000110010111110101000000₂
• Hexadecimal: 0x1C63197D40
• Base-36: 1K0D154W

Squares and roots of 121921699136

• 121921699136 squared (121921699136²) is 14864900720209303146496
• 121921699136 cubed (121921699136³) is 1812353953295868373175303444627456
• The square root of 121921699136 is 349172.8785802243
• The cube root of 121921699136 is 4958.6143796865

Scales and comparisons

• 121,921,699,136 seconds is equal to 3,876 years, 38 weeks, 18 hours, 38 minutes, 56 seconds.
• To count from 1 to 121,921,699,136 would take you about seven thousand, seven hundred fifty-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 121921699136 cubic inches would be around 413.2 feet tall.

Recreational maths with 121921699136

• 121921699136 backwards is 631996129121
• The number of decimal digits it has is: 12
• The sum of 121921699136's digits is 50
• More coming soon!