21242747400

Names of 21242747400

• Cardinal: 21242747400 can be written as Twenty-one billion, two hundred forty-two million, seven hundred forty-seven thousand, four hundred.

Scientific notation

• Scientific notation: 2.12427474 × 10¹⁰

Factors of 21242747400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5057814

Divisors of 21242747400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 140 150 168 175 200 210 280 300 350 420 525 600 700 840 1050 1400 2100 4200 5057797 10115594 15173391 20231188 25288985 30346782 35404579 40462376 50577970 60693564 70809158 75866955 101155940 106213737 121387128 126444925 141618316 151733910 177022895 202311880 212427474 252889850 283236632 303467820 354045790 379334775 424854948 505779700 531068685 606935640 708091580 758669550 849709896 885114475 1011559400 1062137370 1416183160 1517339100 1770228950 2124274740 2655343425 3034678200 3540457900 4248549480 5310686850 7080915800 10621373700 21242747400
• Sum of all divisors σ(n): 75260034240
• Sum of proper divisors (its aliquot sum) s(n): 54017286840
• 21242747400 is an abundant number, because the sum of its proper divisors (54017286840) is greater than itself. Its abundance is 32774539440

Bases of 21242747400

• Binary: 10011110010001010101001101000001000₂
• Hexadecimal: 0x4F22A9A08
• Base-36: 9RBDSSO

Squares and roots of 21242747400

• 21242747400 squared (21242747400²) is 451254317100206760000
• 21242747400 cubed (21242747400³) is 9585881471319192690452424000000
• The square root of 21242747400 is 145748.9190354425
• The cube root of 21242747400 is 2769.5139793803

Scales and comparisons

• 21,242,747,400 seconds is equal to 675 years, 23 weeks, 4 days, 3 hours, 10 minutes.
• To count from 1 to 21,242,747,400 would take you about one thousand, three hundred fifty 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 21242747400 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242747400

• 21242747400 backwards is 00474724212
• The number of decimal digits it has is: 11
• The sum of 21242747400's digits is 33
• More coming soon!