138135932389

Names of 138135932389

• Cardinal: 138135932389 can be written as One hundred thirty-eight billion, one hundred thirty-five million, nine hundred thirty-two thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 1.38135932389 × 10¹¹

Factors of 138135932389

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 420

Divisors of 138135932389

• Number of divisors d(n): 144
• Complete list of divisors:
  1 7 13 19 31 49 91 127 133 169 217 223 247 403 589 637 889 931 1183 1519 1561 1651 1729 2413 2821 2899 3211 3937 4123 4237 5239 6223 6913 7657 8281 10927 11557 12103 16891 19747 20293 21463 22477 27559 28321 28861 29659 31369 36673 37687 48391 51181 53599 55081 74803 80899 89869 99541 118237 131347 142051 150241 157339 192913 198247 207613 219583 256711 263809 338737 358267 368173 375193 385567 407797 523621 538099 629083 665353 696787 716053 877951 919429 972439 1051687 1168297 1387729 1537081 1707511 1846663 2507869 2577211 2698969 2854579 3665347 3766693 4403581 4657471 4786249 4877509 5012371 6145657 6436003 6807073 6995287 8178079 11413363 11952577 12641707 16681069 18040477 19982053 22197643 26366851 32602297 33503743 35086597 43019599 47649511 48967009 57246553 79893541 83668039 88491949 90938731 116767483 148373719 155383501 216853897 234526201 342769063 559254787 619443643 636571117 817372381 1038616033 1087684507 1517977279 2819100661 4455997819 7270312231 10625840953 19733704627 138135932389
• Sum of all divisors σ(n): 191409684480
• Sum of proper divisors (its aliquot sum) s(n): 53273752091
• 138135932389 is a deficient number, because the sum of its proper divisors (53273752091) is less than itself. Its deficiency is 84862180298

Bases of 138135932389

• Binary: 10000000101001100010110000110111100101₂
• Hexadecimal: 0x20298B0DE5
• Base-36: 1RGIKFL1

Squares and roots of 138135932389

• 138135932389 squared (138135932389²) is 19081535816978379247321
• 138135932389 cubed (138135932389³) is 2635845741492407273982734365379869
• The square root of 138135932389 is 371666.4262332555
• The cube root of 138135932389 is 5169.3454368863

Scales and comparisons

• 138,135,932,389 seconds is equal to 4,392 years, 15 weeks, 2 days, 12 hours, 19 minutes, 49 seconds.
• To count from 1 to 138,135,932,389 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 138135932389 cubic inches would be around 430.8 feet tall.

Recreational maths with 138135932389

• 138135932389 backwards is 983239531831
• The number of decimal digits it has is: 12
• The sum of 138135932389's digits is 55
• More coming soon!