21377312847

Names of 21377312847

• Cardinal: 21377312847 can be written as Twenty-one billion, three hundred seventy-seven million, three hundred twelve thousand, eight hundred forty-seven.

Scientific notation

• Scientific notation: 2.1377312847 × 10¹⁰

Factors of 21377312847

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 255

Divisors of 21377312847

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 9 11 17 31 33 51 93 99 121 153 187 193 279 341 363 527 561 579 1023 1089 1581 1683 1737 2057 2123 3069 3281 3751 4743 5797 5983 6171 6369 9843 11253 17391 17949 18513 19107 23353 29529 33759 36091 37249 52173 53847 63767 65813 70059 101711 108273 111747 191301 197439 210177 305133 324819 335241 397001 409739 573903 592317 633233 723943 915399 1118821 1154719 1191003 1229217 1899699 2171829 3356463 3464157 3573009 3687651 4507129 5699097 6515487 6965563 10069389 10392471 12307031 12701909 13521387 19630223 20896689 36921093 38105727 40564161 58890669 62690067 76621193 110763279 114317181 139720999 176672007 215932453 229863579 419162997 647797359 689590737 1257488991 1943392077 2375256983 7125770949 21377312847
• Sum of all divisors σ(n): 37289633472
• Sum of proper divisors (its aliquot sum) s(n): 15912320625
• 21377312847 is a deficient number, because the sum of its proper divisors (15912320625) is less than itself. Its deficiency is 5464992222

Bases of 21377312847

• Binary: 10011111010001011111110100001001111₂
• Hexadecimal: 0x4FA2FE84F
• Base-36: 9TJI05R

Squares and roots of 21377312847

• 21377312847 squared (21377312847²) is 456989504558511245409
• 21377312847 cubed (21377312847³) is 9769207606742827509675785469423
• The square root of 21377312847 is 146209.8247280257
• The cube root of 21377312847 is 2775.3496449623

Scales and comparisons

• 21,377,312,847 seconds is equal to 679 years, 38 weeks, 14 hours, 27 minutes, 27 seconds.
• To count from 1 to 21,377,312,847 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 21377312847 cubic inches would be around 231.3 feet tall.

Recreational maths with 21377312847

• 21377312847 backwards is 74821377312
• The number of decimal digits it has is: 11
• The sum of 21377312847's digits is 45
• More coming soon!