2138427980

Names of 2138427980

• Cardinal: 2138427980 can be written as Two billion, one hundred thirty-eight million, four hundred twenty-seven thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 2.13842798 × 10⁹

Factors of 2138427980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1248

Divisors of 2138427980

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 13 20 26 41 52 65 82 130 164 169 205 260 338 410 533 676 820 845 1066 1187 1690 2132 2197 2374 2665 3380 4394 4748 5330 5935 6929 8788 10660 10985 11870 13858 15431 21970 23740 27716 30862 34645 43940 48667 61724 69290 77155 90077 97334 138580 154310 180154 194668 200603 243335 308620 360308 401206 450385 486670 632671 802412 900770 973340 1003015 1265342 1801540 2006030 2530684 2607839 3163355 4012060 5215678 6326710 8224723 10431356 12653420 13039195 16449446 26078390 32898892 41123615 52156780 82247230 106921399 164494460 213842798 427685596 534606995 1069213990 2138427980
• Sum of all divisors σ(n): 4987604160
• Sum of proper divisors (its aliquot sum) s(n): 2849176180
• 2138427980 is an abundant number, because the sum of its proper divisors (2849176180) is greater than itself. Its abundance is 710748200

Bases of 2138427980

• Binary: 1111111011101011101001001001100₂
• Hexadecimal: 0x7F75D24C
• Base-36: ZD5XL8

Squares and roots of 2138427980

• 2138427980 squared (2138427980²) is 4572874225646880400
• 2138427980 cubed (2138427980³) is 9778762193144122647073592000
• The square root of 2138427980 is 46243.1398155447
• The cube root of 2138427980 is 1288.3431204919

Scales and comparisons

• 2,138,427,980 seconds is equal to 67 years, 51 weeks, 5 days, 7 hours, 46 minutes, 20 seconds.
• To count from 1 to 2,138,427,980 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 2138427980 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138427980

• 2138427980 backwards is 0897248312
• The number of decimal digits it has is: 10
• The sum of 2138427980's digits is 44
• More coming soon!