21347563808

Names of 21347563808

• Cardinal: 21347563808 can be written as Twenty-one billion, three hundred forty-seven million, five hundred sixty-three thousand, eight hundred eight.

Scientific notation

• Scientific notation: 2.1347563808 × 10¹⁰

Factors of 21347563808

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3038

Divisors of 21347563808

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 16 32 37 41 74 82 148 157 164 296 314 328 592 628 656 1184 1256 1312 1517 2512 2801 3034 5024 5602 5809 6068 6437 11204 11618 12136 12874 22408 23236 24272 25748 44816 46472 48544 51496 89632 92944 102992 103637 114841 185888 205984 207274 229682 238169 414548 439757 459364 476338 829096 879514 918728 952676 1658192 1759028 1837456 1905352 3316384 3518056 3674912 3810704 4249117 7036112 7621408 8498234 14072224 16271009 16996468 18030037 32542018 33992936 36060074 65084036 67985872 72120148 130168072 135971744 144240296 260336144 288480592 520672288 576961184 667111369 1334222738 2668445476 5336890952 10673781904 21347563808
• Sum of all divisors σ(n): 44514208368
• Sum of proper divisors (its aliquot sum) s(n): 23166644560
• 21347563808 is an abundant number, because the sum of its proper divisors (23166644560) is greater than itself. Its abundance is 1819080752

Bases of 21347563808

• Binary: 10011111000011010011111100100100000₂
• Hexadecimal: 0x4F869F920
• Base-36: 9T1SDNK

Squares and roots of 21347563808

• 21347563808 squared (21347563808²) is 455718480536631460864
• 21347563808 cubed (21347563808³) is 9728479341740546192174494810112
• The square root of 21347563808 is 146108.0552467933
• The cube root of 21347563808 is 2774.0616390873

Scales and comparisons

• 21,347,563,808 seconds is equal to 678 years, 40 weeks, 6 days, 6 hours, 50 minutes, 8 seconds.
• To count from 1 to 21,347,563,808 would take you about one thousand, three hundred fifty-seven 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 21347563808 cubic inches would be around 231.2 feet tall.

Recreational maths with 21347563808

• 21347563808 backwards is 80836574312
• The number of decimal digits it has is: 11
• The sum of 21347563808's digits is 47
• More coming soon!