21490814784

Names of 21490814784

• Cardinal: 21490814784 can be written as Twenty-one billion, four hundred ninety million, eight hundred fourteen thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.1490814784 × 10¹⁰

Factors of 21490814784

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3622

Divisors of 21490814784

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 37 48 64 74 96 111 148 192 222 296 444 592 888 1184 1367 1776 2213 2368 2734 3552 4101 4426 5468 6639 7104 8202 8852 10936 13278 16404 17704 21872 26556 32808 35408 43744 50579 53112 65616 70816 81881 87488 101158 106224 131232 141632 151737 163762 202316 212448 245643 262464 303474 327524 404632 424896 491286 606948 655048 809264 982572 1213896 1310096 1618528 1965144 2427792 2620192 3025171 3237056 3930288 4855584 5240384 6050342 7860576 9075513 9711168 12100684 15721152 18151026 24201368 36302052 48402736 72604104 96805472 111931327 145208208 193610944 223862654 290416416 335793981 447725308 580832832 671587962 895450616 1343175924 1790901232 2686351848 3581802464 5372703696 7163604928 10745407392 21490814784
• Sum of all divisors σ(n): 58467028608
• Sum of proper divisors (its aliquot sum) s(n): 36976213824
• 21490814784 is an abundant number, because the sum of its proper divisors (36976213824) is greater than itself. Its abundance is 15485399040

Bases of 21490814784

• Binary: 10100000000111100111100111101000000₂
• Hexadecimal: 0x500F3CF40
• Base-36: 9VF2QTC

Squares and roots of 21490814784

• 21490814784 squared (21490814784²) is 461855120080192966656
• 21490814784 cubed (21490814784³) is 9925642842685506273383583842304
• The square root of 21490814784 is 146597.4583135737
• The cube root of 21490814784 is 2780.2528445217

Scales and comparisons

• 21,490,814,784 seconds is equal to 683 years, 17 weeks, 5 days, 6 hours, 46 minutes, 24 seconds.
• To count from 1 to 21,490,814,784 would take you about one thousand, three hundred sixty-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 21490814784 cubic inches would be around 231.7 feet tall.

Recreational maths with 21490814784

• 21490814784 backwards is 48741809412
• 21490814784 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21490814784's digits is 48
• More coming soon!