21427228705887

Names of 21427228705887

• Cardinal: 21427228705887 can be written as Twenty-one trillion, four hundred twenty-seven billion, two hundred twenty-eight million, seven hundred five thousand, eight hundred eighty-seven.

Scientific notation

• Scientific notation: 2.1427228705887 × 10¹³

Factors of 21427228705887

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 40150

Divisors of 21427228705887

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 27 81 243 1163 2053 3489 6159 10467 18477 31401 36931 55431 94203 110793 166293 282609 332379 498879 997137 2387639 2991411 7162917 8974233 21488751 42950753 64466253 75819343 128852259 193398759 227458029 386556777 580196277 682374087 1159670331 2047122261 3479010993 6141366783 10437032979 18424100349 88177895909 264533687727 793601063181 2380803189543 7142409568629 21427228705887
• Sum of all divisors σ(n): 32140870140288
• Sum of proper divisors (its aliquot sum) s(n): 10713641434401
• 21427228705887 is a deficient number, because the sum of its proper divisors (10713641434401) is less than itself. Its deficiency is 10713587271486

Bases of 21427228705887

• Binary: 100110111110011101010010110110000010001011111₂
• Hexadecimal: 0x137CEA5B045F
• Base-36: 7LFJ6QIXR

Squares and roots of 21427228705887

• 21427228705887 squared (21427228705887²) is 459126130014387880748456769
• 21427228705887 cubed (21427228705887³) is 9837800592667098938700211815392235299103
• The square root of 21427228705887 is 4628955.4659649733
• The cube root of 21427228705887 is 27775.0810576673

Scales and comparisons

• 21,427,228,705,887 seconds is equal to 681,319 years, 30 weeks, 6 days, 5 hours, 51 minutes, 27 seconds.
• To count from 1 to 21,427,228,705,887 would take you about one million, seven hundred three thousand, two hundred ninety-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 21427228705887 cubic inches would be around 2314.6 feet tall.

Recreational maths with 21427228705887

• 21427228705887 backwards is 78850782272412
• The number of decimal digits it has is: 14
• The sum of 21427228705887's digits is 63
• More coming soon!