121398905680

Names of 121398905680

• Cardinal: 121398905680 can be written as One hundred twenty-one billion, three hundred ninety-eight million, nine hundred five thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2139890568 × 10¹¹

Factors of 121398905680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 191114

Divisors of 121398905680

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 47 52 65 80 94 104 130 169 188 208 235 260 338 376 470 520 611 676 752 845 940 1040 1222 1352 1690 1880 2444 2704 3055 3380 3760 4888 6110 6760 7943 9776 12220 13520 15886 24440 31772 39715 48880 63544 79430 127088 158860 191047 317720 382094 635440 764188 955235 1528376 1910470 2483611 3056752 3820940 4967222 7641880 8979209 9934444 12418055 15283760 17958418 19868888 24836110 32286943 35916836 39737776 44896045 49672220 64573886 71833672 89792090 99344440 116729717 129147772 143667344 161434715 179584180 198688880 233459434 258295544 322869430 359168360 466918868 516591088 583648585 645738860 718336720 933837736 1167297170 1291477720 1517486321 1867675472 2334594340 2582955440 3034972642 4669188680 6069945284 7587431605 9338377360 12139890568 15174863210 24279781136 30349726420 60699452840 121398905680
• Sum of all divisors σ(n): 312138807552
• Sum of proper divisors (its aliquot sum) s(n): 190739901872
• 121398905680 is an abundant number, because the sum of its proper divisors (190739901872) is greater than itself. Its abundance is 69340996192

Bases of 121398905680

• Binary: 1110001000011111100000100101101010000₂
• Hexadecimal: 0x1C43F04B50
• Base-36: 1JRPRV4G

Squares and roots of 121398905680

• 121398905680 squared (121398905680²) is 14737694300301536262400
• 121398905680 cubed (121398905680³) is 1789139960302979796278197330432000
• The square root of 121398905680 is 348423.4574192731
• The cube root of 121398905680 is 4951.5168045597

Scales and comparisons

• 121,398,905,680 seconds is equal to 3,860 years, 5 weeks, 4 days, 22 hours, 14 minutes, 40 seconds.
• To count from 1 to 121,398,905,680 would take you about seven thousand, seven hundred twenty 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 121398905680 cubic inches would be around 412.6 feet tall.

Recreational maths with 121398905680

• 121398905680 backwards is 086509893121
• 121398905680 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121398905680's digits is 52
• More coming soon!