21691476016400

Names of 21691476016400

• Cardinal: 21691476016400 can be written as Twenty-one trillion, six hundred ninety-one billion, four hundred seventy-six million, sixteen thousand, four hundred.

Scientific notation

• Scientific notation: 2.16914760164 × 10¹³

Factors of 21691476016400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 437

Divisors of 21691476016400

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 29 40 50 58 80 100 116 145 200 232 290 400 401 464 580 725 802 841 1160 1450 1604 1682 2005 2320 2900 3208 3364 4010 4205 5800 6416 6728 8020 8410 10025 11600 11629 13456 16040 16820 20050 21025 23258 32080 33640 40100 42050 46516 58145 67280 80200 84100 93032 116290 160400 160801 168200 186064 232580 290725 321602 336400 337241 465160 581450 643204 674482 804005 930320 1162900 1286408 1348964 1608010 1686205 2325800 2572816 2697928 3216020 3372410 4020025 4651600 4663229 5395856 6432040 6744820 8040050 8431025 9326458 12864080 13489640 16080100 16862050 18652916 23316145 26979280 32160200 33724100 37305832 46632290 64320400 64481201 67448200 74611664 93264580 116580725 128962402 134896400 135233641 186529160 233161450 257924804 270467282 322406005 373058320 466322900 515849608 540934564 644812010 676168205 932645800 1031699216 1081869128 1289624020 1352336410 1612030025 1865291600 1869954829 2163738256 2579248040 2704672820 3224060050 3380841025 3739909658 5158496080 5409345640 6448120100 6761682050 7479819316 9349774145 10818691280 12896240200 13523364100 14959638632 18699548290 25792480400 27046728200 29919277264 37399096580 46748870725 54093456400 54228690041 74798193160 93497741450 108457380082 149596386320 186995482900 216914760164 271143450205 373990965800 433829520328 542286900410 747981931600 867659040656 1084573800820 1355717251025 2169147601640 2711434502050 4338295203280 5422869004100 10845738008200 21691476016400
• Sum of all divisors σ(n): 54107696062524
• Sum of proper divisors (its aliquot sum) s(n): 32416220046124
• 21691476016400 is an abundant number, because the sum of its proper divisors (32416220046124) is greater than itself. Its abundance is 10724744029724

Bases of 21691476016400

• Binary: 100111011101001110000101110001111110100010000₂
• Hexadecimal: 0x13BA70B8FD10
• Base-36: 7OSXCRGNK

Squares and roots of 21691476016400

• 21691476016400 squared (21691476016400²) is 470520131770056413068960000
• 21691476016400 cubed (21691476016400³) is 10206276153523546363760357359290944000000
• The square root of 21691476016400 is 4657410.8704729927
• The cube root of 21691476016400 is 27888.7918977075

Scales and comparisons

• 21,691,476,016,400 seconds is equal to 689,721 years, 43 weeks, 5 days, 4 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,691,476,016,400 would take you about one million, seven hundred twenty-four thousand, three hundred four 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 21691476016400 cubic inches would be around 2324.1 feet tall.

Recreational maths with 21691476016400

• 21691476016400 backwards is 00461067419612
• The number of decimal digits it has is: 14
• The sum of 21691476016400's digits is 47
• More coming soon!