20489718432

Names of 20489718432

• Cardinal: 20489718432 can be written as Twenty billion, four hundred eighty-nine million, seven hundred eighteen thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.0489718432 × 10¹⁰

Factors of 20489718432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2183

Divisors of 20489718432

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 47 48 94 96 141 188 282 376 564 752 1128 1504 2131 2256 4262 4512 6393 8524 12786 17048 25572 34096 51144 68192 100157 102288 200314 204576 300471 400628 600942 801256 1201884 1602512 2403768 3205024 4541161 4807536 9082322 9615072 13623483 18164644 27246966 36329288 54493932 72658576 108987864 145317152 213434567 217975728 426869134 435951456 640303701 853738268 1280607402 1707476536 2561214804 3414953072 5122429608 6829906144 10244859216 20489718432
• Sum of all divisors σ(n): 54955672128
• Sum of proper divisors (its aliquot sum) s(n): 34465953696
• 20489718432 is an abundant number, because the sum of its proper divisors (34465953696) is greater than itself. Its abundance is 13976235264

Bases of 20489718432

• Binary: 10011000101010010000100101010100000₂
• Hexadecimal: 0x4C5484AA0
• Base-36: 9EV1RXC

Squares and roots of 20489718432

• 20489718432 squared (20489718432²) is 419828561422640538624
• 20489718432 cubed (20489718432³) is 8602169013261521986354580717568
• The square root of 20489718432 is 143142.3013368165
• The cube root of 20489718432 is 2736.3942140839

Scales and comparisons

• 20,489,718,432 seconds is equal to 651 years, 26 weeks, 3 days, 12 hours, 27 minutes, 12 seconds.
• To count from 1 to 20,489,718,432 would take you about one thousand, three hundred 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 20489718432 cubic inches would be around 228 feet tall.

Recreational maths with 20489718432

• 20489718432 backwards is 23481798402
• 20489718432 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20489718432's digits is 48
• More coming soon!