21688513047120

Names of 21688513047120

• Cardinal: 21688513047120 can be written as Twenty-one trillion, six hundred eighty-eight billion, five hundred thirteen million, forty-seven thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.168851304712 × 10¹³

Factors of 21688513047120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 46343

Divisors of 21688513047120

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 173 240 346 519 692 865 1038 1384 1730 2076 2595 2768 3460 4152 5190 6920 8304 10380 13840 19867 20760 26293 39734 41520 52586 59601 78879 79468 99335 105172 119202 131465 157758 158936 198670 210344 238404 262930 298005 315516 317872 394395 397340 420688 476808 525860 596010 631032 788790 794680 953616 1051720 1192020 1262064 1577580 1589360 2103440 2384040 3155160 3436991 4548689 4768080 6310320 6873982 9097378 10310973 13646067 13747964 17184955 18194756 20621946 22743445 27292134 27495928 34369910 36389512 41243892 45486890 51554865 54584268 54991856 68230335 68739820 72779024 82487784 90973780 103109730 109168536 136460670 137479640 164975568 181947560 206219460 218337072 272921340 274959280 363895120 412438920 522363031 545842680 824877840 1044726062 1091685360 1567089093 2089452124 2611815155 3134178186 4178904248 5223630310 6268356372 7835445465 8357808496 10447260620 12536712744 15670890930 20894521240 25073425488 31341781860 41789042480 62683563720 90368804363 125367127440 180737608726 271106413089 361475217452 451844021815 542212826178 722950434904 903688043630 1084425652356 1355532065445 1445900869808 1807376087260 2168851304712 2711064130890 3614752174520 4337702609424 5422128261780 7229504349040 10844256523560 21688513047120
• Sum of all divisors σ(n): 67629004359552
• Sum of proper divisors (its aliquot sum) s(n): 45940491312432
• 21688513047120 is an abundant number, because the sum of its proper divisors (45940491312432) is greater than itself. Its abundance is 24251978265312

Bases of 21688513047120

• Binary: 100111011100111000000000111011010101001010000₂
• Hexadecimal: 0x13B9C01DAA50
• Base-36: 7ORKCOQXC

Squares and roots of 21688513047120

• 21688513047120 squared (21688513047120²) is 470391598195094467340294400
• 21688513047120 cubed (21688513047120³) is 10202094314709934998090901819301872128000
• The square root of 21688513047120 is 4657092.7677167867
• The cube root of 21688513047120 is 27887.5220072315

Scales and comparisons

• 21,688,513,047,120 seconds is equal to 689,627 years, 32 weeks, 4 days, 13 hours, 32 minutes.
• To count from 1 to 21,688,513,047,120 would take you about one million, seven hundred twenty-four thousand and sixty-nine 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 21688513047120 cubic inches would be around 2324 feet tall.

Recreational maths with 21688513047120

• 21688513047120 backwards is 02174031588612
• 21688513047120 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21688513047120's digits is 48
• More coming soon!