138430370172

Names of 138430370172

• Cardinal: 138430370172 can be written as One hundred thirty-eight billion, four hundred thirty million, three hundred seventy thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.38430370172 × 10¹¹

Factors of 138430370172

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 307

Divisors of 138430370172

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 12 31 37 41 62 74 82 93 111 123 124 148 164 186 193 222 246 372 386 444 492 579 772 961 1147 1158 1271 1517 1681 1922 2294 2316 2542 2883 3034 3362 3441 3813 3844 4551 4588 5043 5084 5766 5983 6068 6724 6882 7141 7626 7913 9102 10086 11532 11966 13764 14282 15252 15826 17949 18204 20172 21423 23739 23932 28564 31652 35557 35898 39401 42846 47027 47478 52111 62197 71114 71796 78802 85692 94054 94956 104222 106671 118203 124394 141081 142228 156333 157604 185473 186591 188108 208444 213342 221371 236406 245303 248788 282162 292781 312666 324433 370946 373182 426684 442742 472812 490606 556419 564324 585562 625332 648866 664113 735909 741892 746364 878343 885484 973299 981212 1112838 1171124 1297732 1328226 1457837 1471818 1615441 1756686 1928107 1946598 2225676 2656452 2915674 2943636 3230882 3513372 3856214 3893196 4373511 4846323 5784321 5831348 6461764 6862501 7604393 7712428 8747022 9076211 9692646 10057423 11568642 12004021 13725002 15208786 17494044 18152422 19385292 20114846 20587503 22813179 23137284 24008042 27228633 27450004 30172269 30417572 36012063 36304844 40229692 41175006 45626358 48016084 54457266 59771317 60344538 72024126 82350012 91252716 108914532 119542634 120689076 144048252 179313951 239085268 281362541 311780113 358627902 372124651 562725082 623560226 717255804 744249302 844087623 935340339 1116373953 1125450164 1247120452 1488498604 1688175246 1870680678 2232747906 3376350492 3741361356 4465495812 11535864181 23071728362 34607592543 46143456724 69215185086 138430370172
• Sum of all divisors σ(n): 353165184624
• Sum of proper divisors (its aliquot sum) s(n): 214734814452
• 138430370172 is an abundant number, because the sum of its proper divisors (214734814452) is greater than itself. Its abundance is 76304444280

Bases of 138430370172

• Binary: 10000000111011000101111101000101111100₂
• Hexadecimal: 0x203B17D17C
• Base-36: 1RLDV98C

Squares and roots of 138430370172

• 138430370172 squared (138430370172²) is 19162967385956947309584
• 138430370172 cubed (138430370172³) is 2652736668831983410520812603328448
• The square root of 138430370172 is 372062.3202798155
• The cube root of 138430370172 is 5173.0156633599

Scales and comparisons

• 138,430,370,172 seconds is equal to 4,401 years, 34 weeks, 1 day, 8 hours, 36 minutes, 12 seconds.
• To count from 1 to 138,430,370,172 would take you about eight thousand, eight hundred three 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 138430370172 cubic inches would be around 431.1 feet tall.

Recreational maths with 138430370172

• 138430370172 backwards is 271073034831
• The number of decimal digits it has is: 12
• The sum of 138430370172's digits is 39
• More coming soon!