121709991680

Names of 121709991680

• Cardinal: 121709991680 can be written as One hundred twenty-one billion, seven hundred nine million, nine hundred ninety-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2170999168 × 10¹¹

Factors of 121709991680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 19588

Divisors of 121709991680

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 67 73 80 128 134 146 160 256 268 292 320 335 365 536 584 640 670 730 1072 1168 1280 1340 1460 2144 2336 2680 2920 4288 4672 4891 5360 5840 8576 9344 9782 10720 11680 17152 18688 19441 19564 21440 23360 24455 38882 39128 42880 46720 48910 77764 78256 85760 93440 97205 97820 155528 156512 194410 195640 311056 313024 388820 391280 622112 626048 777640 782560 1244224 1252096 1302547 1419193 1555280 1565120 2488448 2605094 2838386 3110560 3130240 4976896 5210188 5676772 6221120 6260480 6512735 7095965 10420376 11353544 12442240 13025470 14191930 20840752 22707088 24884480 26050940 28383860 41681504 45414176 52101880 56767720 83363008 90828352 95085931 104203760 113535440 166726016 181656704 190171862 208407520 227070880 333452032 363313408 380343724 416815040 454141760 475429655 760687448 833630080 908283520 950859310 1521374896 1667260160 1816567040 1901718620 3042749792 3803437240 6085499584 7606874480 12170999168 15213748960 24341998336 30427497920 60854995840 121709991680
• Sum of all divisors σ(n): 299953353504
• Sum of proper divisors (its aliquot sum) s(n): 178243361824
• 121709991680 is an abundant number, because the sum of its proper divisors (178243361824) is greater than itself. Its abundance is 56533370144

Bases of 121709991680

• Binary: 1110001010110011110110001011100000000₂
• Hexadecimal: 0x1C567B1700
• Base-36: 1JWUZIM8

Squares and roots of 121709991680

• 121709991680 squared (121709991680²) is 14813322074745669222400
• 121709991680 cubed (121709991680³) is 1802929306470455739174336069632000
• The square root of 121709991680 is 348869.5912228521
• The cube root of 121709991680 is 4955.7426353689

Scales and comparisons

• 121,709,991,680 seconds is equal to 3,870 years, 11 hours, 1 minute, 20 seconds.
• To count from 1 to 121,709,991,680 would take you about seven thousand, seven hundred forty 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 121709991680 cubic inches would be around 413 feet tall.

Recreational maths with 121709991680

• 121709991680 backwards is 086199907121
• The number of decimal digits it has is: 12
• The sum of 121709991680's digits is 53
• More coming soon!