21016783104

Names of 21016783104

• Cardinal: 21016783104 can be written as Twenty-one billion, sixteen million, seven hundred eighty-three thousand, one hundred four.

Scientific notation

• Scientific notation: 2.1016783104 × 10¹⁰

Factors of 21016783104

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 18641

Divisors of 21016783104

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 1607 3214 4821 6428 9642 12856 17029 19284 25712 34058 38568 51087 51424 68116 77136 102174 102848 136232 154272 204348 205696 272464 308544 408696 411392 544928 617088 817392 1089856 1234176 1634784 2179712 3269568 4359424 6539136 13078272 27365603 54731206 82096809 109462412 164193618 218924824 328387236 437849648 656774472 875699296 1313548944 1751398592 2627097888 3502797184 5254195776 7005594368 10508391552 21016783104
• Sum of all divisors σ(n): 55973386560
• Sum of proper divisors (its aliquot sum) s(n): 34956603456
• 21016783104 is an abundant number, because the sum of its proper divisors (34956603456) is greater than itself. Its abundance is 13939820352

Bases of 21016783104

• Binary: 10011100100101100101010100100000000₂
• Hexadecimal: 0x4E4B2A900
• Base-36: 9NKULMO

Squares and roots of 21016783104

• 21016783104 squared (21016783104²) is 441705172040579874816
• 21016783104 cubed (21016783104³) is 9283221796691872315395343908864
• The square root of 21016783104 is 144971.6631069673
• The cube root of 21016783104 is 2759.6589538687

Scales and comparisons

• 21,016,783,104 seconds is equal to 668 years, 13 weeks, 6 days, 19 hours, 18 minutes, 24 seconds.
• To count from 1 to 21,016,783,104 would take you about one thousand, three hundred thirty-six 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 21016783104 cubic inches would be around 230 feet tall.

Recreational maths with 21016783104

• 21016783104 backwards is 40138761012
• The number of decimal digits it has is: 11
• The sum of 21016783104's digits is 33
• More coming soon!