21216854016

Names of 21216854016

• Cardinal: 21216854016 can be written as Twenty-one billion, two hundred sixteen million, eight hundred fifty-four thousand and sixteen.

Scientific notation

• Scientific notation: 2.1216854016 × 10¹⁰

Factors of 21216854016

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 23986

Divisors of 21216854016

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 864 1024 1152 1536 1728 2048 2304 3072 3456 4096 4608 6144 6912 8192 9216 12288 13824 16384 18432 23981 24576 27648 32768 36864 47962 49152 55296 71943 73728 95924 98304 110592 143886 147456 191848 215829 221184 287772 294912 383696 431658 442368 575544 647487 767392 863316 884736 1151088 1294974 1534784 1726632 2302176 2589948 3069568 3453264 4604352 5179896 6139136 6906528 9208704 10359792 12278272 13813056 18417408 20719584 24556544 27626112 36834816 41439168 49113088 55252224 73669632 82878336 98226176 110504448 147339264 165756672 196452352 221008896 294678528 331513344 392904704 442017792 589357056 663026688 785809408 884035584 1178714112 1326053376 1768071168 2357428224 2652106752 3536142336 5304213504 7072284672 10608427008 21216854016
• Sum of all divisors σ(n): 62866414800
• Sum of proper divisors (its aliquot sum) s(n): 41649560784
• 21216854016 is an abundant number, because the sum of its proper divisors (41649560784) is greater than itself. Its abundance is 20432706768

Bases of 21216854016

• Binary: 10011110000100111111000000000000000₂
• Hexadecimal: 0x4F09F8000
• Base-36: 9QVYTC0

Squares and roots of 21216854016

• 21216854016 squared (21216854016²) is 450154894336255328256
• 21216854016 cubed (21216854016³) is 9550870677720234515709711876096
• The square root of 21216854016 is 145660.0632156941
• The cube root of 21216854016 is 2768.3882422889

Scales and comparisons

• 21,216,854,016 seconds is equal to 674 years, 32 weeks, 5 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,216,854,016 would take you about one thousand, three hundred forty-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 21216854016 cubic inches would be around 230.7 feet tall.

Recreational maths with 21216854016

• 21216854016 backwards is 61045861212
• 21216854016 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21216854016's digits is 36
• More coming soon!