21348665136

Names of 21348665136

• Cardinal: 21348665136 can be written as Twenty-one billion, three hundred forty-eight million, six hundred sixty-five thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 2.1348665136 × 10¹⁰

Factors of 21348665136

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6445881

Divisors of 21348665136

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 36 46 48 69 72 92 138 144 184 207 276 368 414 552 828 1104 1656 3312 6445853 12891706 19337559 25783412 38675118 51566824 58012677 77350236 103133648 116025354 148254619 154700472 232050708 296509238 309400944 444763857 464101416 593018476 889527714 928202832 1186036952 1334291571 1779055428 2372073904 2668583142 3558110856 5337166284 7116221712 10674332568 21348665136
• Sum of all divisors σ(n): 62344299888
• Sum of proper divisors (its aliquot sum) s(n): 40995634752
• 21348665136 is an abundant number, because the sum of its proper divisors (40995634752) is greater than itself. Its abundance is 19646969616

Bases of 21348665136

• Binary: 10011111000011110101100011100110000₂
• Hexadecimal: 0x4F87AC730
• Base-36: 9T2FZG0

Squares and roots of 21348665136

• 21348665136 squared (21348665136²) is 455765503089061898496
• 21348665136 cubed (21348665136³) is 9729985105988956055367526035456
• The square root of 21348665136 is 146111.8240800519
• The cube root of 21348665136 is 2774.1093431913

Scales and comparisons

• 21,348,665,136 seconds is equal to 678 years, 42 weeks, 5 days, 45 minutes, 36 seconds.
• To count from 1 to 21,348,665,136 would take you about one thousand, three hundred fifty-seven 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 21348665136 cubic inches would be around 231.2 feet tall.

Recreational maths with 21348665136

• 21348665136 backwards is 63156684312
• The number of decimal digits it has is: 11
• The sum of 21348665136's digits is 45
• More coming soon!