21217197342

Names of 21217197342

• Cardinal: 21217197342 can be written as Twenty-one billion, two hundred seventeen million, one hundred ninety-seven thousand, three hundred forty-two.

Scientific notation

• Scientific notation: 2.1217197342 × 10¹⁰

Factors of 21217197342

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 223

Divisors of 21217197342

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 11 22 33 37 43 66 74 86 111 127 129 222 254 258 381 407 473 762 814 946 1221 1369 1397 1419 1591 1849 2442 2738 2794 2838 3182 3698 4107 4191 4699 4773 5461 5547 8214 8382 9398 9546 10922 11094 14097 15059 16383 17501 20339 28194 30118 32766 35002 40678 45177 51689 52503 58867 60071 61017 68413 90354 103378 105006 117734 120142 122034 136826 155067 173863 176601 180213 202057 205239 234823 310134 347726 353202 360426 404114 410478 469646 521589 606171 647537 704469 752543 1043178 1212342 1295074 1408938 1505086 1912493 1942611 2222627 2257629 2531281 2583053 3824986 3885222 4445254 4515258 5062562 5166106 5737479 6667881 7476109 7593843 7749159 8688451 11474958 13335762 14952218 15187686 15498318 17376902 22428327 26065353 27844091 44856654 52130706 55688182 82237199 83532273 95572961 164474398 167064546 191145922 246711597 286718883 321472687 493423194 573437766 642945374 964418061 1928836122 3536199557 7072399114 10608598671 21217197342
• Sum of all divisors σ(n): 49092728832
• Sum of proper divisors (its aliquot sum) s(n): 27875531490
• 21217197342 is an abundant number, because the sum of its proper divisors (27875531490) is greater than itself. Its abundance is 6658334148

Bases of 21217197342

• Binary: 10011110000101001001011110100011110₂
• Hexadecimal: 0x4F0A4BD1E
• Base-36: 9QW668U

Squares and roots of 21217197342

• 21217197342 squared (21217197342²) is 450169463049371864964
• 21217197342 cubed (21217197342³) is 9551334334860699948083763725688
• The square root of 21217197342 is 145661.2417288827
• The cube root of 21217197342 is 2768.4031746715

Scales and comparisons

• 21,217,197,342 seconds is equal to 674 years, 33 weeks, 2 days, 9 hours, 55 minutes, 42 seconds.
• To count from 1 to 21,217,197,342 would take you about one thousand, three hundred forty-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 21217197342 cubic inches would be around 230.7 feet tall.

Recreational maths with 21217197342

• 21217197342 backwards is 24379171212
• The number of decimal digits it has is: 11
• The sum of 21217197342's digits is 39
• More coming soon!