21098590740

Names of 21098590740

• Cardinal: 21098590740 can be written as Twenty-one billion, ninety-eight million, five hundred ninety thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.109859074 × 10¹⁰

Factors of 21098590740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 44996

Divisors of 21098590740

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2777 5554 8331 11108 13885 16662 24993 27770 33324 41655 42209 49986 55540 83310 84418 99972 124965 126627 166620 168836 211045 249930 253254 379881 422090 499860 506508 633135 759762 844180 1266270 1519524 1899405 2532540 3798810 7597620 117214393 234428786 351643179 468857572 586071965 703286358 1054929537 1172143930 1406572716 1758215895 2109859074 2344287860 3516431790 4219718148 5274647685 7032863580 10549295370 21098590740
• Sum of all divisors σ(n): 64023621480
• Sum of proper divisors (its aliquot sum) s(n): 42925030740
• 21098590740 is an abundant number, because the sum of its proper divisors (42925030740) is greater than itself. Its abundance is 21826440000

Bases of 21098590740

• Binary: 10011101001100100101111001000010100₂
• Hexadecimal: 0x4E992F214
• Base-36: 9OXK0T0

Squares and roots of 21098590740

• 21098590740 squared (21098590740²) is 445150531214013747600
• 21098590740 cubed (21098590740³) is 9392048875778071413346057224000
• The square root of 21098590740 is 145253.5395093697
• The cube root of 21098590740 is 2763.2349670871

Scales and comparisons

• 21,098,590,740 seconds is equal to 670 years, 45 weeks, 1 day, 15 hours, 39 minutes.
• To count from 1 to 21,098,590,740 would take you about one thousand, three hundred forty-one 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 21098590740 cubic inches would be around 230.3 feet tall.

Recreational maths with 21098590740

• 21098590740 backwards is 04709589012
• 21098590740 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21098590740's digits is 45
• More coming soon!