21140880

Names of 21140880

• Cardinal: 21140880 can be written as Twenty-one million, one hundred forty thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.114088 × 10⁷

Factors of 21140880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1562

Divisors of 21140880

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 59 60 80 118 120 177 236 240 295 354 472 590 708 885 944 1180 1416 1493 1770 2360 2832 2986 3540 4479 4720 5972 7080 7465 8958 11944 14160 14930 17916 22395 23888 29860 35832 44790 59720 71664 88087 89580 119440 176174 179160 264261 352348 358320 440435 528522 704696 880870 1057044 1321305 1409392 1761740 2114088 2642610 3523480 4228176 5285220 7046960 10570440 21140880
• Sum of all divisors σ(n): 66692160
• Sum of proper divisors (its aliquot sum) s(n): 45551280
• 21140880 is an abundant number, because the sum of its proper divisors (45551280) is greater than itself. Its abundance is 24410400

Bases of 21140880

• Binary: 1010000101001010110010000₂
• Hexadecimal: 0x1429590
• Base-36: CL4EO

Squares and roots of 21140880

• 21140880 squared (21140880²) is 446936807174400
• 21140880 cubed (21140880³) is 9448637408057129472000
• The square root of 21140880 is 4597.9212694433
• The cube root of 21140880 is 276.5079911407

Scales and comparisons

• 21,140,880 seconds is equal to 34 weeks, 6 days, 16 hours, 28 minutes.
• To count from 1 to 21,140,880 would take you about three days!

  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 21140880 cubic inches would be around 23 feet tall.

Recreational maths with 21140880

• 21140880 backwards is 08804112
• 21140880 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21140880's digits is 24
• More coming soon!