21643357400

Names of 21643357400

• Cardinal: 21643357400 can be written as Twenty-one billion, six hundred forty-three million, three hundred fifty-seven thousand, four hundred.

Scientific notation

• Scientific notation: 2.16433574 × 10¹⁰

Factors of 21643357400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37156

Divisors of 21643357400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 421 700 842 1400 1684 2105 2947 3368 4210 5894 8420 10525 11788 14735 16840 21050 23576 29470 36721 42100 58940 73442 73675 84200 117880 146884 147350 183605 257047 293768 294700 367210 514094 589400 734420 918025 1028188 1285235 1468840 1836050 2056376 2570470 3672100 5140940 6426175 7344200 10281880 12852350 15459541 25704700 30919082 51409400 61838164 77297705 108216787 123676328 154595410 216433574 309190820 386488525 432867148 541083935 618381640 772977050 865734296 1082167870 1545954100 2164335740 2705419675 3091908200 4328671480 5410839350 10821678700 21643357400
• Sum of all divisors σ(n): 57647664480
• Sum of proper divisors (its aliquot sum) s(n): 36004307080
• 21643357400 is an abundant number, because the sum of its proper divisors (36004307080) is greater than itself. Its abundance is 14360949680

Bases of 21643357400

• Binary: 10100001010000010110110110011011000₂
• Hexadecimal: 0x50A0B6CD8
• Base-36: 9XXW9G8

Squares and roots of 21643357400

• 21643357400 squared (21643357400²) is 468434919544134760000
• 21643357400 cubed (21643357400³) is 10138504382333953684443224000000
• The square root of 21643357400 is 147116.8154902763
• The cube root of 21643357400 is 2786.8154549825

Scales and comparisons

• 21,643,357,400 seconds is equal to 688 years, 9 weeks, 6 days, 19 hours, 43 minutes, 20 seconds.
• To count from 1 to 21,643,357,400 would take you about one thousand, three hundred seventy-six 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 21643357400 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643357400

• 21643357400 backwards is 00475334612
• 21643357400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21643357400's digits is 35
• More coming soon!