2138390625

Names of 2138390625

• Cardinal: 2138390625 can be written as Two billion, one hundred thirty-eight million, three hundred ninety thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 2.138390625 × 10⁹

Factors of 2138390625

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 34

Divisors of 2138390625

• Number of divisors d(n): 140
• Complete list of divisors:
  1 3 5 7 15 19 21 25 35 49 57 75 95 105 125 133 147 175 245 285 343 375 399 475 525 625 665 735 875 931 1029 1225 1425 1715 1875 1995 2375 2401 2625 2793 3125 3325 3675 4375 4655 5145 6125 6517 7125 7203 8575 9375 9975 11875 12005 13125 13965 15625 16625 18375 19551 21875 23275 25725 30625 32585 35625 36015 42875 45619 46875 49875 59375 60025 65625 69825 83125 91875 97755 109375 116375 128625 136857 153125 162925 178125 180075 214375 228095 249375 296875 300125 328125 349125 415625 459375 488775 581875 643125 684285 765625 814625 890625 900375 1071875 1140475 1246875 1500625 1745625 2078125 2296875 2443875 2909375 3215625 3421425 4073125 4501875 5359375 5702375 6234375 7503125 8728125 12219375 14546875 16078125 17107125 20365625 22509375 28511875 37515625 43640625 61096875 85535625 101828125 112546875 142559375 305484375 427678125 712796875 2138390625
• Sum of all divisors σ(n): 4376506480
• Sum of proper divisors (its aliquot sum) s(n): 2238115855
• 2138390625 is an abundant number, because the sum of its proper divisors (2238115855) is greater than itself. Its abundance is 99725230

Bases of 2138390625

• Binary: 1111111011101010100000001100001₂
• Hexadecimal: 0x7F754061
• Base-36: ZD54RL

Squares and roots of 2138390625

• 2138390625 squared (2138390625²) is 4572714465087890625
• 2138390625 cubed (2138390625³) is 9778249742945835113525390625
• The square root of 2138390625 is 46242.7359160335
• The cube root of 2138390625 is 1288.3356186669

Scales and comparisons

• 2,138,390,625 seconds is equal to 67 years, 51 weeks, 4 days, 21 hours, 23 minutes, 45 seconds.
• To count from 1 to 2,138,390,625 would take you about one hundred thirty-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 2138390625 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138390625

• 2138390625 backwards is 5260938312
• The number of decimal digits it has is: 10
• The sum of 2138390625's digits is 39
• More coming soon!