21375956970

Names of 21375956970

• Cardinal: 21375956970 can be written as Twenty-one billion, three hundred seventy-five million, nine hundred fifty-six thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 2.137595697 × 10¹⁰

Factors of 21375956970

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 292422

Divisors of 21375956970

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 271 542 813 1355 1626 2439 2710 4065 4878 7317 8130 12195 14634 24390 36585 73170 292141 584282 876423 1460705 1752846 2629269 2921410 4382115 5258538 7887807 8764230 13146345 15775614 26292690 39439035 78878070 79170211 158340422 237510633 395851055 475021266 712531899 791702110 1187553165 1425063798 2137595697 2375106330 3562659495 4275191394 7125318990 10687978485 21375956970
• Sum of all divisors σ(n): 57213089280
• Sum of proper divisors (its aliquot sum) s(n): 35837132310
• 21375956970 is an abundant number, because the sum of its proper divisors (35837132310) is greater than itself. Its abundance is 14461175340

Bases of 21375956970

• Binary: 10011111010000110110011011111101010₂
• Hexadecimal: 0x4FA1B37EA
• Base-36: 9TIOXYI

Squares and roots of 21375956970

• 21375956970 squared (21375956970²) is 456931536383291580900
• 21375956970 cubed (21375956970³) is 9767348859965230260281673873000
• The square root of 21375956970 is 146205.1879038497
• The cube root of 21375956970 is 2775.2909672987

Scales and comparisons

• 21,375,956,970 seconds is equal to 679 years, 35 weeks, 5 days, 21 hours, 49 minutes, 30 seconds.
• To count from 1 to 21,375,956,970 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 21375956970 cubic inches would be around 231.3 feet tall.

Recreational maths with 21375956970

• 21375956970 backwards is 07965957312
• 21375956970 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21375956970's digits is 54
• More coming soon!