21509005642000

Names of 21509005642000

• Cardinal: 21509005642000 can be written as Twenty-one trillion, five hundred nine billion, five million, six hundred forty-two thousand.

Scientific notation

• Scientific notation: 2.1509005642 × 10¹³

Factors of 21509005642000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 632617837

Divisors of 21509005642000

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 125 136 170 200 250 272 340 400 425 500 680 850 1000 1360 1700 2000 2125 3400 4250 6800 8500 17000 34000 632617813 1265235626 2530471252 3163089065 5060942504 6326178130 10121885008 10754502821 12652356260 15815445325 21509005642 25304712520 31630890650 43018011284 50609425040 53772514105 63261781300 79077226625 86036022568 107545028210 126523562600 158154453250 172072045136 215090056420 253047125200 268862570525 316308906500 430180112840 537725141050 632617813000 860360225680 1075450282100 1265235626000 1344312852625 2150900564200 2688625705250 4301801128400 5377251410500 10754502821000 21509005642000
• Sum of all divisors σ(n): 55068115473072
• Sum of proper divisors (its aliquot sum) s(n): 33559109831072
• 21509005642000 is an abundant number, because the sum of its proper divisors (33559109831072) is greater than itself. Its abundance is 12050104189072

Bases of 21509005642000

• Binary: 100111000111111110100101001000000100100010000₂
• Hexadecimal: 0x138FF4A40910
• Base-36: 7MH3MM2OG

Squares and roots of 21509005642000

• 21509005642000 squared (21509005642000²) is 462637323707587832164000000
• 21509005642000 cubed (21509005642000³) is 9950868805826287040226025069288000000000
• The square root of 21509005642000 is 4637780.2494296773
• The cube root of 21509005642000 is 27810.3706981607

Scales and comparisons

• 21,509,005,642,000 seconds is equal to 683,919 years, 44 weeks, 13 hours, 26 minutes, 40 seconds.
• To count from 1 to 21,509,005,642,000 would take you about one million, seven hundred nine thousand, seven hundred ninety-nine 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 21509005642000 cubic inches would be around 2317.5 feet tall.

Recreational maths with 21509005642000

• 21509005642000 backwards is 00024650090512
• 21509005642000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21509005642000's digits is 34
• More coming soon!