121507905216

Names of 121507905216

• Cardinal: 121507905216 can be written as One hundred twenty-one billion, five hundred seven million, nine hundred five thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.21507905216 × 10¹¹

Factors of 121507905216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 5806111

Divisors of 121507905216

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 109 192 218 327 436 654 872 1308 1744 2616 3488 5232 6976 10464 20928 5805997 11611994 17417991 23223988 34835982 46447976 69671964 92895952 139343928 185791904 278687856 371583808 557375712 632853673 1114751424 1265707346 1898561019 2531414692 3797122038 5062829384 7594244076 10125658768 15188488152 20251317536 30376976304 40502635072 60753952608 121507905216
• Sum of all divisors σ(n): 324439168240
• Sum of proper divisors (its aliquot sum) s(n): 202931263024
• 121507905216 is an abundant number, because the sum of its proper divisors (202931263024) is greater than itself. Its abundance is 81423357808

Bases of 121507905216

• Binary: 1110001001010011011110111111011000000₂
• Hexadecimal: 0x1C4A6F7EC0
• Base-36: 1JTIO3PC

Squares and roots of 121507905216

• 121507905216 squared (121507905216²) is 14764171029980440006656
• 121507905216 cubed (121507905216³) is 1793963494103676398662731657117696
• The square root of 121507905216 is 348579.8405186393
• The cube root of 121507905216 is 4952.9982884943

Scales and comparisons

• 121,507,905,216 seconds is equal to 3,863 years, 29 weeks, 6 days, 11 hours, 53 minutes, 36 seconds.
• To count from 1 to 121,507,905,216 would take you about seven thousand, seven hundred twenty-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 121507905216 cubic inches would be around 412.7 feet tall.

Recreational maths with 121507905216

• 121507905216 backwards is 612509705121
• The number of decimal digits it has is: 12
• The sum of 121507905216's digits is 39
• More coming soon!