30102138

Names of 30102138

• Cardinal: 30102138 can be written as Thirty million, one hundred two thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.0102138 × 10⁷

Factors of 30102138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 304

Divisors of 30102138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 11 17 18 22 27 33 34 51 54 66 99 102 121 153 187 198 242 271 297 306 363 374 459 542 561 594 726 813 918 1089 1122 1626 1683 2057 2178 2439 2981 3267 3366 4114 4607 4878 5049 5962 6171 6534 7317 8943 9214 10098 12342 13821 14634 17886 18513 26829 27642 32791 37026 41463 50677 53658 55539 65582 80487 82926 98373 101354 111078 124389 152031 160974 196746 248778 295119 304062 456093 557447 590238 885357 912186 1114894 1368279 1672341 1770714 2736558 3344682 5017023 10034046 15051069 30102138
• Sum of all divisors σ(n): 78140160
• Sum of proper divisors (its aliquot sum) s(n): 48038022
• 30102138 is an abundant number, because the sum of its proper divisors (48038022) is greater than itself. Its abundance is 17935884

Bases of 30102138

• Binary: 1110010110101001001111010₂
• Hexadecimal: 0x1CB527A
• Base-36: HX6YI

Squares and roots of 30102138

• 30102138 squared (30102138²) is 906138712171044
• 30102138 cubed (30102138³) is 27276712560915046092072
• The square root of 30102138 is 5486.5415336075
• The cube root of 30102138 is 311.0754806229

Scales and comparisons

• 30,102,138 seconds is equal to 49 weeks, 5 days, 9 hours, 42 minutes, 18 seconds.
• To count from 1 to 30,102,138 would take you about twenty-two weeks!

  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 30102138 cubic inches would be around 25.9 feet tall.

Recreational maths with 30102138

• 30102138 backwards is 83120103
• 30102138 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30102138's digits is 18
• More coming soon!