121689400

Names of 121689400

• Cardinal: 121689400 can be written as One hundred twenty-one million, six hundred eighty-nine thousand, four hundred.

Scientific notation

• Scientific notation: 1.216894 × 10⁸

Factors of 121689400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5144

Divisors of 121689400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 25 28 34 35 40 50 56 68 70 85 100 119 136 140 170 175 200 238 280 340 350 425 476 595 680 700 850 952 1190 1400 1700 2380 2975 3400 4760 5113 5950 10226 11900 20452 23800 25565 35791 40904 51130 71582 86921 102260 127825 143164 173842 178955 204520 255650 286328 347684 357910 434605 511300 608447 695368 715820 869210 894775 1022600 1216894 1431640 1738420 1789550 2173025 2433788 3042235 3476840 3579100 4346050 4867576 6084470 7158200 8692100 12168940 15211175 17384200 24337880 30422350 60844700 121689400
• Sum of all divisors σ(n): 342433440
• Sum of proper divisors (its aliquot sum) s(n): 220744040
• 121689400 is an abundant number, because the sum of its proper divisors (220744040) is greater than itself. Its abundance is 99054640

Bases of 121689400

• Binary: 111010000001101010100111000₂
• Hexadecimal: 0x740D538
• Base-36: 20G854

Squares and roots of 121689400

• 121689400 squared (121689400²) is 14808310072360000
• 121689400 cubed (121689400³) is 1802014367719444984000000
• The square root of 121689400 is 11031.2918554447
• The cube root of 121689400 is 495.5463138125

Scales and comparisons

• 121,689,400 seconds is equal to 3 years, 45 weeks, 1 day, 10 hours, 36 minutes, 40 seconds.
• To count from 1 to 121,689,400 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 121689400 cubic inches would be around 41.3 feet tall.

Recreational maths with 121689400

• 121689400 backwards is 004986121
• The number of decimal digits it has is: 9
• The sum of 121689400's digits is 31
• More coming soon!