21478378080

Names of 21478378080

• Cardinal: 21478378080 can be written as Twenty-one billion, four hundred seventy-eight million, three hundred seventy-eight thousand and eighty.

Scientific notation

• Scientific notation: 2.147837808 × 10¹⁰

Factors of 21478378080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1091432

Divisors of 21478378080

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 60 80 82 96 120 123 160 164 205 240 246 328 410 480 492 615 656 820 984 1230 1312 1640 1968 2460 3280 3936 4920 6560 9840 19680 1091381 2182762 3274143 4365524 5456905 6548286 8731048 10913810 13096572 16370715 17462096 21827620 26193144 32741430 34924192 43655240 44746621 52386288 65482860 87310480 89493242 104772576 130965720 134239863 174620960 178986484 223733105 261931440 268479726 357972968 447466210 523862880 536959452 671199315 715945936 894932420 1073918904 1342398630 1431891872 1789864840 2147837808 2684797260 3579729680 4295675616 5369594520 7159459360 10739189040 21478378080
• Sum of all divisors σ(n): 69307122528
• Sum of proper divisors (its aliquot sum) s(n): 47828744448
• 21478378080 is an abundant number, because the sum of its proper divisors (47828744448) is greater than itself. Its abundance is 26350366368

Bases of 21478378080

• Binary: 10100000000001101100000101001100000₂
• Hexadecimal: 0x500360A60
• Base-36: 9V7O6LC

Squares and roots of 21478378080

• 21478378080 squared (21478378080²) is 461320724947424486400
• 21478378080 cubed (21478378080³) is 9908420946560471241149018112000
• The square root of 21478378080 is 146555.0343045233
• The cube root of 21478378080 is 2779.7164315769

Scales and comparisons

• 21,478,378,080 seconds is equal to 682 years, 49 weeks, 1 day, 8 hours, 8 minutes.
• To count from 1 to 21,478,378,080 would take you about one thousand, three hundred sixty-five 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 21478378080 cubic inches would be around 231.6 feet tall.

Recreational maths with 21478378080

• 21478378080 backwards is 08087387412
• 21478378080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21478378080's digits is 48
• More coming soon!