138399825872

Names of 138399825872

• Cardinal: 138399825872 can be written as One hundred thirty-eight billion, three hundred ninety-nine million, eight hundred twenty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.38399825872 × 10¹¹

Factors of 138399825872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4843

Divisors of 138399825872

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 31 44 56 62 77 88 112 124 154 176 217 248 308 341 434 496 616 682 868 941 1232 1364 1736 1882 2387 2728 3472 3764 3851 4774 5456 6587 7528 7702 9548 10351 13174 15056 15404 19096 20702 26348 26957 29171 30808 38192 41404 42361 52696 53914 58342 61616 72457 82808 84722 105392 107828 116684 119381 144914 165616 169444 204197 215656 233368 238762 289828 296527 320881 338888 408394 431312 466736 477524 579656 593054 641762 677776 816788 835667 955048 1159312 1186108 1283524 1313191 1633576 1671334 1910096 2246167 2372216 2567048 2626382 3267152 3342668 3623791 4492334 4744432 5134096 5252764 6685336 7247582 8984668 9192337 10505528 13370672 14495164 17969336 18384674 21011056 25366537 28990328 35938672 36769348 39861701 50733074 57980656 73538696 79723402 101466148 112337521 147077392 159446804 202932296 224675042 279031907 318893608 405864592 449350084 558063814 637787216 786362647 898700168 1116127628 1235712731 1572725294 1797400336 2232255256 2471425462 3145450588 4464510512 4942850924 6290901176 8649989117 9885701848 12581802352 17299978234 19771403696 34599956468 69199912936 138399825872
• Sum of all divisors σ(n): 345557311488
• Sum of proper divisors (its aliquot sum) s(n): 207157485616
• 138399825872 is an abundant number, because the sum of its proper divisors (207157485616) is greater than itself. Its abundance is 68757659744

Bases of 138399825872

• Binary: 10000000111001010001011011111111010000₂
• Hexadecimal: 0x203945BFD0
• Base-36: 1RKVOL3K

Squares and roots of 138399825872

• 138399825872 squared (138399825872²) is 19154511801399920560384
• 138399825872 cubed (138399825872³) is 2650981097976918051391778261454848
• The square root of 138399825872 is 372021.2707252101
• The cube root of 138399825872 is 5172.6351645701

Scales and comparisons

• 138,399,825,872 seconds is equal to 4,400 years, 35 weeks, 4 days, 20 hours, 4 minutes, 32 seconds.
• To count from 1 to 138,399,825,872 would take you about eight thousand, eight hundred one 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 138399825872 cubic inches would be around 431.1 feet tall.

Recreational maths with 138399825872

• 138399825872 backwards is 278528993831
• The number of decimal digits it has is: 12
• The sum of 138399825872's digits is 65
• More coming soon!