138207212

Names of 138207212

• Cardinal: 138207212 can be written as One hundred thirty-eight million, two hundred seven thousand, two hundred twelve.

Scientific notation

• Scientific notation: 1.38207212 × 10⁸

Factors of 138207212

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 337

Divisors of 138207212

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 11 13 17 22 26 34 44 52 61 68 122 143 187 221 233 244 286 374 442 466 572 671 748 793 884 932 1037 1342 1586 2074 2431 2563 2684 3029 3172 3961 4148 4862 5126 6058 7922 8723 9724 10252 11407 12116 13481 14213 15844 17446 22814 26962 28426 33319 34892 43571 45628 51493 53924 56852 66638 87142 102986 133276 148291 156343 174284 184769 205972 241621 296582 312686 369538 483242 566423 593164 625372 739076 966484 1132846 2032459 2265692 2657831 3141073 4064918 5315662 6282146 8129836 10631324 12564292 34551803 69103606 138207212
• Sum of all divisors σ(n): 307105344
• Sum of proper divisors (its aliquot sum) s(n): 168898132
• 138207212 is an abundant number, because the sum of its proper divisors (168898132) is greater than itself. Its abundance is 30690920

Bases of 138207212

• Binary: 1000001111001101111111101100₂
• Hexadecimal: 0x83CDFEC
• Base-36: 2AA9D8

Squares and roots of 138207212

• 138207212 squared (138207212²) is 19101233448812944
• 138207212 cubed (138207212³) is 2639928220721581699752128
• The square root of 138207212 is 11756.1563446563
• The cube root of 138207212 is 517.0234429745

Scales and comparisons

• 138,207,212 seconds is equal to 4 years, 20 weeks, 3 days, 14 hours, 53 minutes, 32 seconds.
• To count from 1 to 138,207,212 would take you about six 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 138207212 cubic inches would be around 43.1 feet tall.

Recreational maths with 138207212

• 138207212 backwards is 212702831
• 138207212 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138207212's digits is 26
• More coming soon!