21380571424

Names of 21380571424

• Cardinal: 21380571424 can be written as Twenty-one billion, three hundred eighty million, five hundred seventy-one thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1380571424 × 10¹⁰

Factors of 21380571424

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 494

Divisors of 21380571424

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 16 17 32 34 53 68 106 136 181 212 241 272 289 362 424 482 544 578 724 848 901 964 1156 1448 1696 1802 1928 2312 2896 3077 3604 3856 4097 4624 5792 6154 7208 7712 8194 9248 9593 12308 12773 14416 15317 16388 19186 24616 25546 28832 30634 32776 38372 43621 49232 51092 52309 61268 65552 69649 76744 87242 98464 102184 104618 122536 131104 139298 153488 163081 174484 204368 209236 217141 245072 278596 306976 326162 348968 408736 418472 434282 490144 557192 652324 697936 741557 836944 868564 1114384 1304648 1395872 1483114 1673888 1737128 2228768 2311913 2609296 2772377 2966228 3474256 3691397 4623826 5218592 5544754 5932456 6948512 7382794 9247652 11089508 11864912 12606469 14765588 18495304 22179016 23729824 25212938 29531176 36990608 39302521 44358032 50425876 59062352 73981216 78605042 88716064 100851752 118124704 157210084 201703504 314420168 403407008 628840336 668142857 1257680672 1336285714 2672571428 5345142856 10690285712 21380571424
• Sum of all divisors σ(n): 46000170216
• Sum of proper divisors (its aliquot sum) s(n): 24619598792
• 21380571424 is an abundant number, because the sum of its proper divisors (24619598792) is greater than itself. Its abundance is 3239027368

Bases of 21380571424

• Binary: 10011111010011000011010000100100000₂
• Hexadecimal: 0x4FA61A120
• Base-36: 9TLFUHS

Squares and roots of 21380571424

• 21380571424 squared (21380571424²) is 457128834416765387776
• 21380571424 cubed (21380571424³) is 9773675694217521756395824513024
• The square root of 21380571424 is 146220.9677987393
• The cube root of 21380571424 is 2775.4906547501

Scales and comparisons

• 21,380,571,424 seconds is equal to 679 years, 43 weeks, 3 days, 7 hours, 37 minutes, 4 seconds.
• To count from 1 to 21,380,571,424 would take you about one thousand, three hundred fifty-nine 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 21380571424 cubic inches would be around 231.3 feet tall.

Recreational maths with 21380571424

• 21380571424 backwards is 42417508312
• The number of decimal digits it has is: 11
• The sum of 21380571424's digits is 37
• More coming soon!