155408919984

Names of 155408919984

• Cardinal: 155408919984 can be written as One hundred fifty-five billion, four hundred eight million, nine hundred nineteen thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.55408919984 × 10¹¹

Factors of 155408919984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 425617

Divisors of 155408919984

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 2551 5102 7653 10204 15306 20408 22959 30612 40816 45918 61224 91836 122448 183672 367344 423061 846122 1269183 1692244 2538366 3384488 3807549 5076732 6768976 7615098 10153464 15230196 20306928 30460392 60920784 1079228611 2158457222 3237685833 4316914444 6475371666 8633828888 9713057499 12950743332 17267657776 19426114998 25901486664 38852229996 51802973328 77704459992 155408919984
• Sum of all divisors σ(n): 435100652272
• Sum of proper divisors (its aliquot sum) s(n): 279691732288
• 155408919984 is an abundant number, because the sum of its proper divisors (279691732288) is greater than itself. Its abundance is 124282812304

Bases of 155408919984

• Binary: 10010000101111000101111110110110110000₂
• Hexadecimal: 0x242F17EDB0
• Base-36: 1ZE6GI40

Squares and roots of 155408919984

• 155408919984 squared (155408919984²) is 24151932410593314560256
• 155408919984 cubed (155408919984³) is 3753425731456872656460166850555904
• The square root of 155408919984 is 394219.3805281525
• The cube root of 155408919984 is 5376.4050552451

Scales and comparisons

• 155,408,919,984 seconds is equal to 4,941 years, 27 weeks, 1 day, 8 hours, 26 minutes, 24 seconds.
• To count from 1 to 155,408,919,984 would take you about nine thousand, eight hundred eighty-three 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 155408919984 cubic inches would be around 448 feet tall.

Recreational maths with 155408919984

• 155408919984 backwards is 489919804551
• The number of decimal digits it has is: 12
• The sum of 155408919984's digits is 63
• More coming soon!