121309440

Names of 121309440

• Cardinal: 121309440 can be written as One hundred twenty-one million, three hundred nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.2130944 × 10⁸

Factors of 121309440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4530

Divisors of 121309440

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 560 640 672 768 840 896 960 1120 1280 1344 1680 1792 1920 2240 2688 3360 3840 4480 4513 5376 6720 8960 9026 13440 13539 18052 22565 26880 27078 31591 36104 45130 54156 63182 67695 72208 90260 94773 108312 126364 135390 144416 157955 180520 189546 216624 252728 270780 288832 315910 361040 379092 433248 473865 505456 541560 577664 631820 722080 758184 866496 947730 1010912 1083120 1155328 1263640 1444160 1516368 1732992 1895460 2021824 2166240 2527280 2888320 3032736 3465984 3790920 4043648 4332480 5054560 5776640 6065472 7581840 8087296 8664960 10109120 12130944 15163680 17329920 20218240 24261888 30327360 40436480 60654720 121309440
• Sum of all divisors σ(n): 442877568
• Sum of proper divisors (its aliquot sum) s(n): 321568128
• 121309440 is an abundant number, because the sum of its proper divisors (321568128) is greater than itself. Its abundance is 200258688

Bases of 121309440

• Binary: 111001110110000100100000000₂
• Hexadecimal: 0x73B0900
• Base-36: 2082YO

Squares and roots of 121309440

• 121309440 squared (121309440²) is 14715980233113600
• 121309440 cubed (121309440³) is 1785187321130080272384000
• The square root of 121309440 is 11014.0564734345
• The cube root of 121309440 is 495.0300155251

Scales and comparisons

• 121,309,440 seconds is equal to 3 years, 44 weeks, 4 days, 1 hour, 4 minutes.
• To count from 1 to 121,309,440 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 121309440 cubic inches would be around 41.3 feet tall.

Recreational maths with 121309440

• 121309440 backwards is 044903121
• 121309440 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 121309440's digits is 24
• More coming soon!