21721026312

Names of 21721026312

• Cardinal: 21721026312 can be written as Twenty-one billion, seven hundred twenty-one million, twenty-six thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1721026312 × 10¹⁰

Factors of 21721026312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 45575

Divisors of 21721026312

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 47 54 72 94 108 141 188 216 282 376 423 564 846 1128 1269 1692 2209 2538 3384 4418 5076 6627 8836 10152 13254 17672 19881 26508 39762 45523 53016 59643 79524 91046 119286 136569 159048 182092 238572 273138 364184 409707 477144 546276 819414 1092552 1229121 1638828 2139581 2458242 3277656 4279162 4916484 6418743 8558324 9832968 12837486 17116648 19256229 25674972 38512458 51349944 57768687 77024916 100560307 115537374 154049832 201120614 231074748 301680921 402241228 462149496 603361842 804482456 905042763 1206723684 1810085526 2413447368 2715128289 3620171052 5430256578 7240342104 10860513156 21721026312
• Sum of all divisors σ(n): 61648600800
• Sum of proper divisors (its aliquot sum) s(n): 39927574488
• 21721026312 is an abundant number, because the sum of its proper divisors (39927574488) is greater than itself. Its abundance is 18206548176

Bases of 21721026312

• Binary: 10100001110101011001000111100001000₂
• Hexadecimal: 0x50EAC8F08
• Base-36: 9Z84Z60

Squares and roots of 21721026312

• 21721026312 squared (21721026312²) is 471802984046596321344
• 21721026312 cubed (21721026312³) is 10248045030556234929955431203328
• The square root of 21721026312 is 147380.5493001027
• The cube root of 21721026312 is 2790.1450450665

Scales and comparisons

• 21,721,026,312 seconds is equal to 690 years, 34 weeks, 2 days, 18 hours, 25 minutes, 12 seconds.
• To count from 1 to 21,721,026,312 would take you about one thousand, three hundred eighty-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 21721026312 cubic inches would be around 232.5 feet tall.

Recreational maths with 21721026312

• 21721026312 backwards is 21362012712
• 21721026312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21721026312's digits is 27
• More coming soon!