21440166384

Names of 21440166384

• Cardinal: 21440166384 can be written as Twenty-one billion, four hundred forty million, one hundred sixty-six thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 2.1440166384 × 10¹⁰

Factors of 21440166384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 701234

Divisors of 21440166384

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 49 52 56 78 84 91 98 104 112 147 156 168 182 196 208 273 294 312 336 364 392 546 588 624 637 728 784 1092 1176 1274 1456 1911 2184 2352 2548 3822 4368 5096 7644 10192 15288 30576 701209 1402418 2103627 2804836 4207254 4908463 5609672 8414508 9115717 9816926 11219344 14725389 16829016 18231434 19633852 27347151 29450778 33658032 34359241 36462868 39267704 54694302 58901556 63810019 68718482 72925736 78535408 103077723 109388604 117803112 127620038 137436964 145851472 191430057 206155446 218777208 235606224 255240076 274873928 382860114 412310892 437554416 446670133 510480152 549747856 765720228 824621784 893340266 1020960304 1340010399 1531440456 1649243568 1786680532 2680020798 3062880912 3573361064 5360041596 7146722128 10720083192 21440166384
• Sum of all divisors σ(n): 69386131920
• Sum of proper divisors (its aliquot sum) s(n): 47945965536
• 21440166384 is an abundant number, because the sum of its proper divisors (47945965536) is greater than itself. Its abundance is 26505799152

Bases of 21440166384

• Binary: 10011111101111011101111100111110000₂
• Hexadecimal: 0x4FDEEF9F0
• Base-36: 9UKX69C

Squares and roots of 21440166384

• 21440166384 squared (21440166384²) is 459680734573603635456
• 21440166384 cubed (21440166384³) is 9855631432777403238643921711104
• The square root of 21440166384 is 146424.6098987459
• The cube root of 21440166384 is 2778.0670095239

Scales and comparisons

• 21,440,166,384 seconds is equal to 681 years, 38 weeks, 1 hour, 46 minutes, 24 seconds.
• To count from 1 to 21,440,166,384 would take you about one thousand, three hundred sixty-three 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 21440166384 cubic inches would be around 231.5 feet tall.

Recreational maths with 21440166384

• 21440166384 backwards is 48366104412
• 21440166384 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21440166384's digits is 39
• More coming soon!