21217336320

Names of 21217336320

• Cardinal: 21217336320 can be written as Twenty-one billion, two hundred seventeen million, three hundred thirty-six thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.121733632 × 10¹⁰

Factors of 21217336320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1381347

Divisors of 21217336320

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2560 3072 3840 5120 7680 15360 1381337 2762674 4144011 5525348 6906685 8288022 11050696 13813370 16576044 20720055 22101392 27626740 33152088 41440110 44202784 55253480 66304176 82880220 88405568 110506960 132608352 165760440 176811136 221013920 265216704 331520880 353622272 442027840 530433408 663041760 707244544 884055680 1060866816 1326083520 1414489088 1768111360 2121733632 2652167040 3536222720 4243467264 5304334080 7072445440 10608668160 21217336320
• Sum of all divisors σ(n): 67862373264
• Sum of proper divisors (its aliquot sum) s(n): 46645036944
• 21217336320 is an abundant number, because the sum of its proper divisors (46645036944) is greater than itself. Its abundance is 25427700624

Bases of 21217336320

• Binary: 10011110000101001101101110000000000₂
• Hexadecimal: 0x4F0A6DC00
• Base-36: 9QW95HC

Squares and roots of 21217336320

• 21217336320 squared (21217336320²) is 450175360515991142400
• 21217336320 cubed (21217336320³) is 9551522027045032806441811968000
• The square root of 21217336320 is 145661.7187870581
• The cube root of 21217336320 is 2768.4092192381

Scales and comparisons

• 21,217,336,320 seconds is equal to 674 years, 33 weeks, 4 days, 32 minutes.
• To count from 1 to 21,217,336,320 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 21217336320 cubic inches would be around 230.7 feet tall.

Recreational maths with 21217336320

• 21217336320 backwards is 02363371212
• 21217336320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21217336320's digits is 30
• More coming soon!