7213216990

Names of 7213216990

• Cardinal: 7213216990 can be written as Seven billion, two hundred thirteen million, two hundred sixteen thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 7.21321699 × 10⁹

Factors of 7213216990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6475

Divisors of 7213216990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 7 10 14 23 35 46 49 70 98 101 115 161 202 230 245 322 490 505 707 805 1010 1127 1414 1610 2254 2323 3535 4646 4949 5635 6337 7070 9898 11270 11615 12674 16261 23230 24745 31685 32522 44359 49490 63370 81305 88718 113827 145751 162610 221795 227654 291502 310513 443590 569135 621026 640037 728755 1020257 1138270 1280074 1457510 1552565 2040514 3105130 3200185 4480259 5101285 6400370 7141799 8960518 10202570 14283598 14720851 22401295 29441702 31361813 35708995 44802590 62723626 71417990 73604255 103045957 147208510 156809065 206091914 313618130 515229785 721321699 1030459570 1442643398 3606608495 7213216990
• Sum of all divisors σ(n): 15918825024
• Sum of proper divisors (its aliquot sum) s(n): 8705608034
• 7213216990 is an abundant number, because the sum of its proper divisors (8705608034) is greater than itself. Its abundance is 1492391044

Bases of 7213216990

• Binary: 110101101111100001111010011011110₂
• Hexadecimal: 0x1ADF0F4DE
• Base-36: 3BAK9UM

Squares and roots of 7213216990

• 7213216990 squared (7213216990²) is 52030499344824660100
• 7213216990 cubed (7213216990³) is 375307281872273106804295099000
• The square root of 7213216990 is 84930.6598938215
• The cube root of 7213216990 is 1932.1596083919

Scales and comparisons

• 7,213,216,990 seconds is equal to 229 years, 18 weeks, 4 days, 7 hours, 23 minutes, 10 seconds.
• To count from 1 to 7,213,216,990 would take you about four hundred fifty-eight 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 7213216990 cubic inches would be around 161 feet tall.

Recreational maths with 7213216990

• 7213216990 backwards is 0996123127
• The number of decimal digits it has is: 10
• The sum of 7213216990's digits is 40
• More coming soon!