138251989504

Names of 138251989504

• Cardinal: 138251989504 can be written as One hundred thirty-eight billion, two hundred fifty-one million, nine hundred eighty-nine thousand, five hundred four.

Scientific notation

• Scientific notation: 1.38251989504 × 10¹¹

Factors of 138251989504

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 38285

Divisors of 138251989504

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 32 41 64 82 128 164 173 256 328 346 512 656 692 1312 1384 2624 2768 5248 5536 7093 10496 11072 14186 20992 22144 28372 38069 44288 56744 76138 88576 113488 152276 226976 304552 453952 609104 907904 1218208 1560829 1815808 2436416 3121658 3631616 4872832 6243316 6585937 9745664 12486632 13171874 19491328 24973264 26343748 49946528 52687496 99893056 105374992 199786112 210749984 270023417 399572224 421499968 540046834 799144448 842999936 1080093668 1685999872 2160187336 3371999744 4320374672 8640749344 17281498688 34562997376 69125994752 138251989504
• Sum of all divisors σ(n): 284614517880
• Sum of proper divisors (its aliquot sum) s(n): 146362528376
• 138251989504 is an abundant number, because the sum of its proper divisors (146362528376) is greater than itself. Its abundance is 8110538872

Bases of 138251989504

• Binary: 10000000110000011101011111001000000000₂
• Hexadecimal: 0x203075F200
• Base-36: 1RIFNXTS

Squares and roots of 138251989504

• 138251989504 squared (138251989504²) is 19113612601814126166016
• 138251989504 cubed (138251989504³) is 2642494968809528702062975793496064
• The square root of 138251989504 is 371822.5242020717
• The cube root of 138251989504 is 5170.7927344133

Scales and comparisons

• 138,251,989,504 seconds is equal to 4,395 years, 51 weeks, 1 day, 18 hours, 25 minutes, 4 seconds.
• To count from 1 to 138,251,989,504 would take you about eight thousand, seven hundred ninety-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 138251989504 cubic inches would be around 430.9 feet tall.

Recreational maths with 138251989504

• 138251989504 backwards is 405989152831
• The number of decimal digits it has is: 12
• The sum of 138251989504's digits is 55
• More coming soon!