8220978990

Names of 8220978990

• Cardinal: 8220978990 can be written as Eight billion, two hundred twenty million, nine hundred seventy-eight thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 8.22097899 × 10⁹

Factors of 8220978990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 126811

Divisors of 8220978990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 103 105 126 206 210 309 315 515 618 630 721 927 1030 1442 1545 1854 2163 3090 3605 4326 4635 6489 7210 9270 10815 12978 21630 32445 64890 126691 253382 380073 633455 760146 886837 1140219 1266910 1773674 1900365 2280438 2660511 3800730 4434185 5321022 5701095 7981533 8868370 11402190 13049173 13302555 15963066 26098346 26605110 39147519 39907665 65245865 78295038 79815330 91344211 117442557 130491730 182688422 195737595 234885114 274032633 391475190 456721055 548065266 587212785 822097899 913442110 1174425570 1370163165 1644195798 2740326330 4110489495 8220978990
• Sum of all divisors σ(n): 24665412096
• Sum of proper divisors (its aliquot sum) s(n): 16444433106
• 8220978990 is an abundant number, because the sum of its proper divisors (16444433106) is greater than itself. Its abundance is 8223454116

Bases of 8220978990

• Binary: 111101010000000100010111100101110₂
• Hexadecimal: 0x1EA022F2E
• Base-36: 3RYK3ZI

Squares and roots of 8220978990

• 8220978990 squared (8220978990²) is 67584495554021420100
• 8220978990 cubed (8220978990³) is 555610717999358504652063699000
• The square root of 8220978990 is 90669.6144802657
• The cube root of 8220978990 is 2018.2479162505

Scales and comparisons

• 8,220,978,990 seconds is equal to 261 years, 20 weeks, 6 days, 5 hours, 16 minutes, 30 seconds.
• To count from 1 to 8,220,978,990 would take you about five hundred twenty-two 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 8220978990 cubic inches would be around 168.2 feet tall.

Recreational maths with 8220978990

• 8220978990 backwards is 0998790228
• The number of decimal digits it has is: 10
• The sum of 8220978990's digits is 54
• More coming soon!