121640940

Names of 121640940

• Cardinal: 121640940 can be written as One hundred twenty-one million, six hundred forty thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2164094 × 10⁸

Factors of 121640940

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 113

Divisors of 121640940

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 103 108 135 162 180 206 243 270 309 324 405 412 486 515 540 618 729 810 927 972 1030 1215 1236 1458 1545 1620 1854 2060 2187 2430 2781 2916 3090 3645 3708 4374 4635 4860 5562 6180 6561 7290 8343 8748 9270 10935 11124 13122 13905 14580 16686 18540 19683 21870 25029 26244 27810 32805 33372 39366 41715 43740 50058 55620 59049 65610 75087 78732 83430 98415 100116 118098 125145 131220 150174 166860 196830 225261 236196 250290 295245 300348 375435 393660 450522 500580 590490 675783 750870 901044 1126305 1180980 1351566 1501740 2027349 2252610 2703132 3378915 4054698 4505220 6082047 6757830 8109396 10136745 12164094 13515660 20273490 24328188 30410235 40546980 60820470 121640940
• Sum of all divisors σ(n): 386886864
• Sum of proper divisors (its aliquot sum) s(n): 265245924
• 121640940 is an abundant number, because the sum of its proper divisors (265245924) is greater than itself. Its abundance is 143604984

Bases of 121640940

• Binary: 111010000000001011111101100₂
• Hexadecimal: 0x74017EC
• Base-36: 20F6R0

Squares and roots of 121640940

• 121640940 squared (121640940²) is 14796518284083600
• 121640940 cubed (121640940³) is 1799862392803116142584000
• The square root of 121640940 is 11029.0951578087
• The cube root of 121640940 is 495.4805251111

Scales and comparisons

• 121,640,940 seconds is equal to 3 years, 45 weeks, 21 hours, 9 minutes.
• To count from 1 to 121,640,940 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 121640940 cubic inches would be around 41.3 feet tall.

Recreational maths with 121640940

• 121640940 backwards is 049046121
• 121640940 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 121640940's digits is 27
• More coming soon!