21273472128

Names of 21273472128

• Cardinal: 21273472128 can be written as Twenty-one billion, two hundred seventy-three million, four hundred seventy-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1273472128 × 10¹⁰

Factors of 21273472128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3798

Divisors of 21273472128

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 71 96 128 142 192 213 223 284 384 426 446 568 669 852 892 1136 1338 1704 1784 2272 2676 3408 3499 3568 4544 5352 6816 6998 7136 9088 10497 10704 13632 13996 14272 15833 20994 21408 27264 27992 28544 31666 41988 42816 47499 55984 63332 83976 85632 94998 111968 126664 167952 189996 223936 248429 253328 335904 379992 447872 496858 506656 671808 745287 759984 780277 993716 1013312 1343616 1490574 1519968 1560554 1987432 2026624 2340831 2981148 3039936 3121108 3974864 4681662 5962296 6079872 6242216 7949728 9363324 11924592 12484432 15899456 18726648 23849184 24968864 31798912 37453296 47698368 49937728 55399667 74906592 95396736 99875456 110799334 149813184 166199001 221598668 299626368 332398002 443197336 664796004 886394672 1329592008 1772789344 2659184016 3545578688 5318368032 7091157376 10636736064 21273472128
• Sum of all divisors σ(n): 57576960000
• Sum of proper divisors (its aliquot sum) s(n): 36303487872
• 21273472128 is an abundant number, because the sum of its proper divisors (36303487872) is greater than itself. Its abundance is 15030015744

Bases of 21273472128

• Binary: 10011110011111111110110110010000000₂
• Hexadecimal: 0x4F3FF6C80
• Base-36: 9RTOC5C

Squares and roots of 21273472128

• 21273472128 squared (21273472128²) is 452560616380792848384
• 21273472128 cubed (21273472128³) is 9627535658807296894638753841152
• The square root of 21273472128 is 145854.2838863501
• The cube root of 21273472128 is 2770.8485771785

Scales and comparisons

• 21,273,472,128 seconds is equal to 676 years, 22 weeks, 2 days, 17 hours, 48 minutes, 48 seconds.
• To count from 1 to 21,273,472,128 would take you about one thousand, three hundred fifty-two 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 21273472128 cubic inches would be around 230.9 feet tall.

Recreational maths with 21273472128

• 21273472128 backwards is 82127437212
• The number of decimal digits it has is: 11
• The sum of 21273472128's digits is 39
• More coming soon!