21315479360

Names of 21315479360

• Cardinal: 21315479360 can be written as Twenty-one billion, three hundred fifteen million, four hundred seventy-nine thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.131547936 × 10¹⁰

Factors of 21315479360

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9515853

Divisors of 21315479360

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 9515839 19031678 38063356 47579195 66610873 76126712 95158390 133221746 152253424 190316780 266443492 304506848 333054365 380633560 532886984 609013696 666108730 761267120 1065773968 1332217460 1522534240 2131547936 2664434920 3045068480 4263095872 5328869840 10657739680 21315479360
• Sum of all divisors σ(n): 58008560640
• Sum of proper divisors (its aliquot sum) s(n): 36693081280
• 21315479360 is an abundant number, because the sum of its proper divisors (36693081280) is greater than itself. Its abundance is 15377601920

Bases of 21315479360

• Binary: 10011110110100000000110011101000000₂
• Hexadecimal: 0x4F6806740
• Base-36: 9SIOP4W

Squares and roots of 21315479360

• 21315479360 squared (21315479360²) is 454349660346586009600
• 21315479360 cubed (21315479360³) is 9684680807340664534093561856000
• The square root of 21315479360 is 145998.2169754137
• The cube root of 21315479360 is 2772.6711781069

Scales and comparisons

• 21,315,479,360 seconds is equal to 677 years, 39 weeks, 5 days, 22 hours, 29 minutes, 20 seconds.
• To count from 1 to 21,315,479,360 would take you about one thousand, three hundred fifty-five 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 21315479360 cubic inches would be around 231.1 feet tall.

Recreational maths with 21315479360

• 21315479360 backwards is 06397451312
• The number of decimal digits it has is: 11
• The sum of 21315479360's digits is 41
• More coming soon!