2755428221

Names of 2755428221

• Cardinal: 2755428221 can be written as Two billion, seven hundred fifty-five million, four hundred twenty-eight thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 2.755428221 × 10⁹

Factors of 2755428221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 97

Divisors of 2755428221

• Number of divisors d(n): 108
• Complete list of divisors:
  1 7 13 17 23 37 49 91 119 161 169 221 259 299 391 481 529 629 637 833 851 1127 1183 1547 1813 2093 2737 2873 3367 3703 3887 4403 5083 5957 6253 6877 8177 8281 8993 10829 11063 14467 14651 19159 19573 20111 23569 25921 27209 30821 35581 41699 43771 48139 57239 62951 66079 77441 89401 101269 106301 116909 137011 140777 143819 188071 190463 249067 254449 306397 332741 336973 400673 440657 462553 542087 625807 708883 744107 818363 959077 1006733 1316497 1519817 1781143 2329187 2444923 3237871 3307837 4325633 4380649 5208749 5728541 7047131 9215479 10638719 12468001 16304309 17114461 23154859 30279431 56233229 74471033 119801227 162084013 211956017 393632603 2755428221
• Sum of all divisors σ(n): 3945546612
• Sum of proper divisors (its aliquot sum) s(n): 1190118391
• 2755428221 is a deficient number, because the sum of its proper divisors (1190118391) is less than itself. Its deficiency is 1565309830

Bases of 2755428221

• Binary: 10100100001111000111111101111101₂
• Hexadecimal: 0xA43C7F7D
• Base-36: 19KIE0T

Squares and roots of 2755428221

• 2755428221 squared (2755428221²) is 7592384681083224841
• 2755428221 cubed (2755428221³) is 20920271014944802576579637861
• The square root of 2755428221 is 52492.1729498789
• The cube root of 2755428221 is 1401.9408830231

Scales and comparisons

• 2,755,428,221 seconds is equal to 87 years, 31 weeks, 6 days, 12 hours, 43 minutes, 41 seconds.
• To count from 1 to 2,755,428,221 would take you about one hundred seventy-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 2755428221 cubic inches would be around 116.8 feet tall.

Recreational maths with 2755428221

• 2755428221 backwards is 1228245572
• The number of decimal digits it has is: 10
• The sum of 2755428221's digits is 38
• More coming soon!