145990021520

Names of 145990021520

• Cardinal: 145990021520 can be written as One hundred forty-five billion, nine hundred ninety million, twenty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.4599002152 × 10¹¹

Factors of 145990021520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 11334666

Divisors of 145990021520

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 23 28 35 40 46 56 70 80 92 112 115 140 161 184 230 280 322 368 460 560 644 805 920 1288 1610 1840 2576 3220 6440 12880 11334629 22669258 45338516 56673145 79342403 90677032 113346290 158684806 181354064 226692580 260696467 317369612 396712015 453385160 521392934 634739224 793424030 906770320 1042785868 1269478448 1303482335 1586848060 1824875269 2085571736 2606964670 3173696120 3649750538 4171143472 5213929340 6347392240 7299501076 9124376345 10427858680 14599002152 18248752690 20855717360 29198004304 36497505380 72995010760 145990021520
• Sum of all divisors σ(n): 404782306560
• Sum of proper divisors (its aliquot sum) s(n): 258792285040
• 145990021520 is an abundant number, because the sum of its proper divisors (258792285040) is greater than itself. Its abundance is 112802263520

Bases of 145990021520

• Binary: 10000111111101101011101111000110010000₂
• Hexadecimal: 0x21FDAEF190
• Base-36: 1V2EOTJK

Squares and roots of 145990021520

• 145990021520 squared (145990021520²) is 21313086383410063110400
• 145990021520 cubed (145990021520³) is 3111497939771654084471854135808000
• The square root of 145990021520 is 382086.4058298855
• The cube root of 145990021520 is 5265.5174641193

Scales and comparisons

• 145,990,021,520 seconds is equal to 4,642 years, 1 week, 4 days, 7 hours, 45 minutes, 20 seconds.
• To count from 1 to 145,990,021,520 would take you about nine thousand, two 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 145990021520 cubic inches would be around 438.8 feet tall.

Recreational maths with 145990021520

• 145990021520 backwards is 025120099541
• The number of decimal digits it has is: 12
• The sum of 145990021520's digits is 38
• More coming soon!