138537115912

Names of 138537115912

• Cardinal: 138537115912 can be written as One hundred thirty-eight billion, five hundred thirty-seven million, one hundred fifteen thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.38537115912 × 10¹¹

Factors of 138537115912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 170

Divisors of 138537115912

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 13 26 29 37 52 58 74 89 104 116 148 169 178 232 296 338 356 377 481 676 712 754 841 962 1073 1157 1352 1369 1508 1682 1924 2146 2314 2581 2738 3016 3293 3364 3848 4292 4628 4901 5162 5476 6253 6586 6728 8584 9256 9802 10324 10933 10952 12506 13172 13949 15041 17797 19604 20648 21866 25012 26344 27898 30082 31117 33553 35594 39208 39701 42809 43732 50024 55796 60164 62234 67106 71188 74849 79402 85618 87464 95497 111592 120328 121841 124468 134212 142129 142376 149698 158804 171236 181337 190994 231361 243682 248936 268424 284258 299396 317608 342472 362674 381988 404521 436189 462722 487364 516113 556517 568516 598792 725348 763976 809042 872378 925444 973037 974728 1032226 1113034 1137032 1151329 1241461 1450696 1583933 1618084 1744756 1850888 1946074 2064452 2226068 2302658 2482922 2769413 3167866 3236168 3489512 3533389 3892148 4128904 4452136 4605316 4965844 5258773 5538826 6335732 6709469 7066778 7784296 9210632 9931688 10517546 11077652 12649481 12671464 13418938 14133556 14967277 16138993 20591129 21035092 22155304 25298962 26837876 28267112 29934554 32277986 36002369 41182258 42070184 45934057 50597924 53675752 59869108 64555972 72004738 82364516 91868114 101195848 102468281 119738216 129111944 144009476 164729032 183736228 194574601 204936562 288018952 367472456 389149202 409873124 468030797 597142741 778298404 819746248 936061594 1194285482 1332087653 1556596808 1872123188 2388570964 2664175306 3744246376 4777141928 5328350612 10656701224 17317139489 34634278978 69268557956 138537115912
• Sum of all divisors σ(n): 302759033850
• Sum of proper divisors (its aliquot sum) s(n): 164221917938
• 138537115912 is an abundant number, because the sum of its proper divisors (164221917938) is greater than itself. Its abundance is 25684802026

Bases of 138537115912

• Binary: 10000001000001011101001010000100001000₂
• Hexadecimal: 0x204174A108
• Base-36: 1RN5F6RS

Squares and roots of 138537115912

• 138537115912 squared (138537115912²) is 19192532485214923591744
• 138537115912 cubed (138537115912³) is 2658878097549045295861661894230528
• The square root of 138537115912 is 372205.7440609965
• The cube root of 138537115912 is 5174.3449851197

Scales and comparisons

• 138,537,115,912 seconds is equal to 4,405 years, 2 weeks, 4 days, 20 hours, 11 minutes, 52 seconds.
• To count from 1 to 138,537,115,912 would take you about eight thousand, eight hundred ten 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 138537115912 cubic inches would be around 431.2 feet tall.

Recreational maths with 138537115912

• 138537115912 backwards is 219511735831
• The number of decimal digits it has is: 12
• The sum of 138537115912's digits is 46
• More coming soon!