1091289380920

Names of 1091289380920

• Cardinal: 1091289380920 can be written as One trillion, ninety-one billion, two hundred eighty-nine million, three hundred eighty thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.09128938092 × 10¹²

Factors of 1091289380920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11748

Divisors of 1091289380920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 937 1874 3748 4685 5147 5657 7496 9370 10294 11314 18740 20588 22628 25735 28285 37480 41176 45256 51470 56570 102940 113140 205880 226280 4822739 5300609 9645478 10601218 19290956 21202436 24113695 26503045 29116579 38581912 42404872 48227390 53006090 58233158 96454780 106012180 116466316 145582895 192909560 212024360 232932632 291165790 582331580 1164663160 27282234523 54564469046 109128938092 136411172615 218257876184 272822345230 545644690460 1091289380920
• Sum of all divisors σ(n): 2458933757280
• Sum of proper divisors (its aliquot sum) s(n): 1367644376360
• 1091289380920 is an abundant number, because the sum of its proper divisors (1367644376360) is greater than itself. Its abundance is 276354995440

Bases of 1091289380920

• Binary: 1111111000010101111010100111100000111000₂
• Hexadecimal: 0xFE15EA7838
• Base-36: DXBXIREG

Squares and roots of 1091289380920

• 1091289380920 squared (1091289380920²) is 1190912512908756860046400
• 1091289380920 cubed (1091289380920³) is 1299630178942078782246838938474688000
• The square root of 1091289380920 is 1044647.9698539599
• The cube root of 1091289380920 is 10295.4810381213

Scales and comparisons

• 1,091,289,380,920 seconds is equal to 34,699 years, 32 weeks, 4 days, 3 hours, 8 minutes, 40 seconds.
• To count from 1 to 1,091,289,380,920 would take you about eighty-six thousand, seven hundred forty-nine 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 1091289380920 cubic inches would be around 858 feet tall.

Recreational maths with 1091289380920

• 1091289380920 backwards is 0290839821901
• The number of decimal digits it has is: 13
• The sum of 1091289380920's digits is 52
• More coming soon!