121745988

Names of 121745988

• Cardinal: 121745988 can be written as One hundred twenty-one million, seven hundred forty-five thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.21745988 × 10⁸

Factors of 121745988

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5334

Divisors of 121745988

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 63 78 84 91 98 117 126 147 156 182 196 234 252 273 294 364 441 468 546 588 637 819 882 1092 1274 1638 1764 1911 2548 3276 3822 5309 5733 7644 10618 11466 15927 21236 22932 31854 37163 47781 63708 69017 74326 95562 111489 138034 148652 191124 207051 222978 260141 276068 334467 414102 445956 483119 520282 621153 668934 780423 828204 966238 1040564 1242306 1337868 1449357 1560846 1932476 2341269 2484612 2898714 3121692 3381833 4348071 4682538 5797428 6763666 8696142 9365076 10145499 13527332 17392284 20290998 30436497 40581996 60872994 121745988
• Sum of all divisors σ(n): 385601580
• Sum of proper divisors (its aliquot sum) s(n): 263855592
• 121745988 is an abundant number, because the sum of its proper divisors (263855592) is greater than itself. Its abundance is 142109604

Bases of 121745988

• Binary: 111010000011011001001000100₂
• Hexadecimal: 0x741B244
• Base-36: 20HFT0

Squares and roots of 121745988

• 121745988 squared (121745988²) is 14822085594096144
• 121745988 cubed (121745988³) is 1804529454873802018270272
• The square root of 121745988 is 11033.8564427855
• The cube root of 121745988 is 495.6231148847

Scales and comparisons

• 121,745,988 seconds is equal to 3 years, 45 weeks, 2 days, 2 hours, 19 minutes, 48 seconds.
• To count from 1 to 121,745,988 would take you about five 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 121745988 cubic inches would be around 41.3 feet tall.

Recreational maths with 121745988

• 121745988 backwards is 889547121
• The number of decimal digits it has is: 9
• The sum of 121745988's digits is 45
• More coming soon!