21684223433697840

Names of 21684223433697840

• Cardinal: 21684223433697840 can be written as Twenty-one quadrillion, six hundred eighty-four trillion, two hundred twenty-three billion, four hundred thirty-three million, six hundred ninety-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.168422343369784 × 10¹⁶

Factors of 21684223433697840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 30116976991257

Divisors of 21684223433697840

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 30116976991247 60233953982494 90350930973741 120467907964988 150584884956235 180701861947482 240935815929976 271052792921223 301169769912470 361403723894964 451754654868705 481871631859952 542105585842446 602339539824940 722807447789928 903509309737410 1084211171684892 1204679079649880 1355263964606115 1445614895579856 1807018619474820 2168422343369784 2409358159299760 2710527929212230 3614037238949640 4336844686739568 5421055858424460 7228074477899280 10842111716848920 21684223433697840
• Sum of all divisors σ(n): 72822850364837664
• Sum of proper divisors (its aliquot sum) s(n): 51138626931139824
• 21684223433697840 is an abundant number, because the sum of its proper divisors (51138626931139824) is greater than itself. Its abundance is 29454403497441984

Bases of 21684223433697840

• Binary: 1001101000010011010111110110010111111101110101000110000₂
• Hexadecimal: 0x4D09AFB2FEEA30
• Base-36: 5XIEYQ2D640

Squares and roots of 21684223433697840

• 21684223433697840 squared (21684223433697840²) is 470205545922530542450456420665600
• 21684223433697840 cubed (21684223433697840³) is 10196042117548022629428967072285935485602082304000
• The square root of 21684223433697840 is 147255639.7347749801
• The cube root of 21684223433697840 is 278856.8332921775

Scales and comparisons

• 21,684,223,433,697,840 seconds is equal to 689,491,231 years, 25 weeks, 1 day, 9 hours, 24 minutes.
• To count from 1 to 21,684,223,433,697,840 would take you about two billion, sixty-eight million, four hundred seventy-three thousand, six hundred ninety-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 21684223433697840 cubic inches would be around 23238.1 feet tall.

Recreational maths with 21684223433697840

• 21684223433697840 backwards is 04879633432248612
• 21684223433697840 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21684223433697840's digits is 72
• More coming soon!