138644809740

Names of 138644809740

• Cardinal: 138644809740 can be written as One hundred thirty-eight billion, six hundred forty-four million, eight hundred nine thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.3864480974 × 10¹¹

Factors of 138644809740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9467

Divisors of 138644809740

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 45 60 74 90 111 148 180 185 222 333 370 444 555 666 740 1110 1332 1665 2220 3330 3541 5879 6660 7082 10623 11758 14164 17637 17705 21246 23516 29395 31869 35274 35410 42492 52911 53115 58790 63738 70548 70820 88185 105822 106230 117580 127476 131017 159345 176370 211644 212460 217523 262034 264555 318690 352740 393051 435046 524068 529110 637380 652569 655085 786102 870092 1058220 1087615 1179153 1305138 1310170 1572204 1957707 1965255 2175230 2358306 2610276 2620340 3262845 3915414 3930510 4350460 4716612 5895765 6525690 7830828 7861020 9788535 11791530 13051380 19577070 20817539 23583060 39154140 41635078 62452617 83270156 104087695 124905234 187357851 208175390 249810468 312263085 374715702 416350780 624526170 749431404 770248943 936789255 1249052340 1540497886 1873578510 2310746829 3080995772 3747157020 3851244715 4621493658 6932240487 7702489430 9242987316 11553734145 13864480974 15404978860 23107468290 27728961948 34661202435 46214936580 69322404870 138644809740
• Sum of all divisors σ(n): 432117766080
• Sum of proper divisors (its aliquot sum) s(n): 293472956340
• 138644809740 is an abundant number, because the sum of its proper divisors (293472956340) is greater than itself. Its abundance is 154828146600

Bases of 138644809740

• Binary: 10000001000111110111111110100000001100₂
• Hexadecimal: 0x2047DFE80C
• Base-36: 1ROXJFV0

Squares and roots of 138644809740

• 138644809740 squared (138644809740²) is 19222383267840798867600
• 138644809740 cubed (138644809740³) is 2665083670919147019608009450424000
• The square root of 138644809740 is 372350.3857121677
• The cube root of 138644809740 is 5175.6854217801

Scales and comparisons

• 138,644,809,740 seconds is equal to 4,408 years, 24 weeks, 5 days, 7 hours, 9 minutes.
• To count from 1 to 138,644,809,740 would take you about eight thousand, eight hundred sixteen 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 138644809740 cubic inches would be around 431.3 feet tall.

Recreational maths with 138644809740

• 138644809740 backwards is 047908446831
• The number of decimal digits it has is: 12
• The sum of 138644809740's digits is 54
• More coming soon!