1221025000

Names of 1221025000

• Cardinal: 1221025000 can be written as One billion, two hundred twenty-one million, twenty-five thousand.

Scientific notation

• Scientific notation: 1.221025 × 10⁹

Factors of 1221025000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 37

Divisors of 1221025000

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 8 10 13 17 20 25 26 34 40 50 52 65 68 85 100 104 125 130 136 169 170 200 221 250 260 289 325 338 340 425 442 500 520 578 625 650 676 680 845 850 884 1000 1105 1156 1250 1300 1352 1445 1625 1690 1700 1768 2125 2210 2312 2500 2600 2873 2890 3125 3250 3380 3400 3757 4225 4250 4420 5000 5525 5746 5780 6250 6500 6760 7225 7514 8125 8450 8500 8840 10625 11050 11492 11560 12500 13000 14365 14450 15028 16250 16900 17000 18785 21125 21250 22100 22984 25000 27625 28730 28900 30056 32500 33800 36125 37570 40625 42250 42500 44200 48841 53125 55250 57460 57800 65000 71825 72250 75140 81250 84500 85000 93925 97682 105625 106250 110500 114920 138125 143650 144500 150280 162500 169000 180625 187850 195364 211250 212500 221000 244205 276250 287300 289000 325000 359125 361250 375700 390728 422500 425000 469625 488410 528125 552500 574600 690625 718250 722500 751400 845000 903125 939250 976820 1056250 1105000 1221025 1381250 1436500 1445000 1795625 1806250 1878500 1953640 2112500 2348125 2442050 2762500 2873000 3591250 3612500 3757000 4225000 4696250 4884100 5525000 6105125 7182500 7225000 8978125 9392500 9768200 11740625 12210250 14365000 17956250 18785000 23481250 24420500 30525625 35912500 46962500 48841000 61051250 71825000 93925000 122102500 152628125 244205000 305256250 610512500 1221025000
• Sum of all divisors σ(n): 3291644790
• Sum of proper divisors (its aliquot sum) s(n): 2070619790
• 1221025000 is an abundant number, because the sum of its proper divisors (2070619790) is greater than itself. Its abundance is 849594790

Bases of 1221025000

• Binary: 1001000110001110101110011101000₂
• Hexadecimal: 0x48C75CE8
• Base-36: K6YSX4

Squares and roots of 1221025000

• 1221025000 squared (1221025000²) is 1490902050625000000
• 1221025000 cubed (1221025000³) is 1820428676364390625000000000
• The square root of 1221025000 is 34943.1681448605
• The cube root of 1221025000 is 1068.8288930965

Scales and comparisons

• 1,221,025,000 seconds is equal to 38 years, 42 weeks, 6 days, 5 hours, 36 minutes, 40 seconds.
• To count from 1 to 1,221,025,000 would take you about seventy-seven 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 1221025000 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221025000

• 1221025000 backwards is 0005201221
• 1221025000 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1221025000's digits is 13
• More coming soon!