138551921172

Names of 138551921172

• Cardinal: 138551921172 can be written as One hundred thirty-eight billion, five hundred fifty-one million, nine hundred twenty-one thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.38551921172 × 10¹¹

Factors of 138551921172

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 962

Divisors of 138551921172

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 31 36 42 49 54 62 63 84 93 98 108 124 126 147 186 189 196 217 252 279 294 372 378 434 441 558 588 651 756 837 868 882 919 1116 1302 1323 1519 1674 1764 1838 1953 2604 2646 2757 3038 3348 3676 3906 4557 5292 5514 5859 6076 6433 7812 8271 9114 11028 11718 12866 13671 16542 18228 19299 23436 24813 25732 27342 28489 33084 38598 41013 45031 49626 54684 56978 57897 77196 82026 85467 90062 99252 113956 115794 135093 164052 170934 173691 180124 199423 231588 256401 270186 341868 347382 398846 405279 512802 540372 598269 694764 769203 797692 810558 844561 1025604 1196538 1215837 1395961 1538406 1621116 1689122 1794807 2393076 2431674 2533683 2791922 3076812 3378244 3589614 4187883 4863348 5067366 5384421 5583844 5911927 7179228 7601049 8375766 10134732 10768842 11823854 12563649 15202098 16751532 17735781 21537684 22803147 23647708 25127298 26181391 30404196 35471562 37690947 41383489 45606294 50254596 52362782 53207343 70943124 75381894 78544173 82766978 91212588 104725564 106414686 124150467 150763788 157088346 159622029 165533956 183269737 212829372 235632519 248300934 314176692 319244058 366539474 372451401 471265038 496601868 549809211 638488116 706897557 733078948 744902802 942530076 1099618422 1117354203 1282888159 1413795114 1489805604 1649427633 2199236844 2234708406 2565776318 2827590228 3298855266 3848664477 4469416812 4948282899 5131552636 6597710532 7697328954 9896565798 11545993431 15394657908 19793131596 23091986862 34637980293 46183973724 69275960586 138551921172
• Sum of all divisors σ(n): 431804056320
• Sum of proper divisors (its aliquot sum) s(n): 293252135148
• 138551921172 is an abundant number, because the sum of its proper divisors (293252135148) is greater than itself. Its abundance is 154700213976

Bases of 138551921172

• Binary: 10000001000010010101101000101000010100₂
• Hexadecimal: 0x2042568A14
• Base-36: 1RNE8IL0

Squares and roots of 138551921172

• 138551921172 squared (138551921172²) is 19196634860452101853584
• 138551921172 cubed (138551921172³) is 2659730639953026836299485453680448
• The square root of 138551921172 is 372225.6320728057
• The cube root of 138551921172 is 5174.5293034605

Scales and comparisons

• 138,551,921,172 seconds is equal to 4,405 years, 27 weeks, 1 day, 4 hours, 46 minutes, 12 seconds.
• To count from 1 to 138,551,921,172 would take you about eight thousand, eight hundred eleven 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 138551921172 cubic inches would be around 431.2 feet tall.

Recreational maths with 138551921172

• 138551921172 backwards is 271129155831
• The number of decimal digits it has is: 12
• The sum of 138551921172's digits is 45
• More coming soon!