1989180147390

Names of 1989180147390

• Cardinal: 1989180147390 can be written as One trillion, nine hundred eighty-nine billion, one hundred eighty million, one hundred forty-seven thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.98918014739 × 10¹²

Factors of 1989180147390

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 24185

Divisors of 1989180147390

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 1171 2342 2803 3513 5606 5855 7026 8409 11710 14015 16818 17565 20201 28030 35130 40402 42045 60603 84090 101005 121206 202010 303015 606030 3282313 6564626 9846939 16411565 19693878 23655371 32823130 47310742 49234695 56623403 70966113 98469390 113246806 118276855 141932226 169870209 236553710 283117015 339740418 354830565 566234030 709661130 849351045 1698702090 66306004913 132612009826 198918014739 331530024565 397836029478 663060049130 994590073695 1989180147390
• Sum of all divisors σ(n): 4780050492672
• Sum of proper divisors (its aliquot sum) s(n): 2790870345282
• 1989180147390 is an abundant number, because the sum of its proper divisors (2790870345282) is greater than itself. Its abundance is 801690197892

Bases of 1989180147390

• Binary: 11100111100100100011000000100011010111110₂
• Hexadecimal: 0x1CF246046BE
• Base-36: PDTEI0U6

Squares and roots of 1989180147390

• 1989180147390 squared (1989180147390²) is 3956837658770502123812100
• 1989180147390 cubed (1989180147390³) is 7870862917271409940828861106665419000
• The square root of 1989180147390 is 1410382.9789776959
• The cube root of 1989180147390 is 12576.4491369389

Scales and comparisons

• 1,989,180,147,390 seconds is equal to 63,249 years, 40 weeks, 2 days, 8 hours, 56 minutes, 30 seconds.
• To count from 1 to 1,989,180,147,390 would take you about one hundred fifty-eight thousand, one hundred twenty-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 1989180147390 cubic inches would be around 1048 feet tall.

Recreational maths with 1989180147390

• 1989180147390 backwards is 0937410819891
• The number of decimal digits it has is: 13
• The sum of 1989180147390's digits is 60
• More coming soon!