138129978834

Names of 138129978834

• Cardinal: 138129978834 can be written as One hundred thirty-eight billion, one hundred twenty-nine million, nine hundred seventy-eight thousand, eight hundred thirty-four.

Scientific notation

• Scientific notation: 1.38129978834 × 10¹¹

Factors of 138129978834

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 348

Divisors of 138129978834

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 9 18 19 27 38 41 54 57 82 114 123 171 246 283 342 369 513 566 738 779 849 1026 1107 1558 1681 1698 2214 2337 2547 3362 4674 5043 5094 5377 7011 7641 10086 10754 11603 14022 15129 15282 16131 21033 23206 30258 31939 32262 34809 42066 45387 48393 63878 69618 80089 90774 95817 96786 104427 145179 160178 191634 208854 220457 240267 287451 290358 313281 440914 475723 480534 574902 626562 661371 720801 862353 951446 1322742 1427169 1441602 1521691 1724706 1984113 2162403 2854338 3043382 3283649 3968226 4281507 4324806 4565073 5952339 6567298 8563014 9038737 9130146 9850947 11904678 12844521 13695219 18077474 19701894 25689042 27116211 27390438 29552841 41085657 54232422 59105682 62389331 81348633 82171314 88658523 124778662 134629609 162697266 177317046 187167993 244045899 269259218 374335986 403888827 488091798 561503979 807777654 1123007958 1211666481 1684511937 2423332962 2557962571 3369023874 3634999443 5115925142 7269998886 7673887713 15347775426 23021663139 46043326278 69064989417 138129978834
• Sum of all divisors σ(n): 332358429600
• Sum of proper divisors (its aliquot sum) s(n): 194228450766
• 138129978834 is an abundant number, because the sum of its proper divisors (194228450766) is greater than itself. Its abundance is 56098471932

Bases of 138129978834

• Binary: 10000000101001001100000011010111010010₂
• Hexadecimal: 0x20293035D2
• Base-36: 1RGF0TSI

Squares and roots of 138129978834

• 138129978834 squared (138129978834²) is 19079891052681287999556
• 138129978834 cubed (138129978834³) is 2635504947261892290326528481397704
• The square root of 138129978834 is 371658.4168749579
• The cube root of 138129978834 is 5169.2711708501

Scales and comparisons

• 138,129,978,834 seconds is equal to 4,392 years, 5 weeks, 3 days, 14 hours, 33 minutes, 54 seconds.
• To count from 1 to 138,129,978,834 would take you about eight thousand, seven hundred eighty-four 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 138129978834 cubic inches would be around 430.8 feet tall.

Recreational maths with 138129978834

• 138129978834 backwards is 438879921831
• The number of decimal digits it has is: 12
• The sum of 138129978834's digits is 63
• More coming soon!