21368227842

Names of 21368227842

• Cardinal: 21368227842 can be written as Twenty-one billion, three hundred sixty-eight million, two hundred twenty-seven thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 2.1368227842 × 10¹⁰

Factors of 21368227842

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 366

Divisors of 21368227842

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 78 81 117 137 162 169 211 234 243 274 338 351 411 422 486 507 633 702 729 822 1014 1053 1233 1266 1458 1521 1781 1899 2106 2187 2466 2743 3042 3159 3562 3699 3798 4374 4563 5343 5486 5697 6318 7398 8229 9126 9477 10686 11097 11394 13689 16029 16458 17091 18954 22194 23153 24687 27378 28431 28907 32058 33291 34182 35659 41067 46306 48087 49374 51273 56862 57814 66582 69459 71318 74061 82134 86721 96174 99873 102546 106977 123201 138918 144261 148122 153819 173442 199746 208377 213954 222183 246402 260163 288522 299619 307638 320931 369603 375791 416754 432783 444366 461457 520326 599238 625131 641862 666549 739206 751582 780489 865566 922914 962793 1127373 1250262 1298349 1333098 1560978 1875393 1925586 1999647 2254746 2341467 2596698 2888379 3382119 3750786 3895047 3999294 4682934 4885283 5626179 5776758 5998941 6764238 7024401 7790094 8665137 9770566 10146357 11252358 11997882 14048802 14655849 16878537 17330274 20292714 21073203 25995411 29311698 30439071 33757074 42146406 43967547 50635611 51990822 60878142 63219609 77986233 87935094 91317213 101271222 126439218 131902641 155972466 182634426 263805282 273951639 395707923 547903278 791415846 821854917 1187123769 1643709834 2374247538 3561371307 7122742614 10684113921 21368227842
• Sum of all divisors σ(n): 52681864320
• Sum of proper divisors (its aliquot sum) s(n): 31313636478
• 21368227842 is an abundant number, because the sum of its proper divisors (31313636478) is greater than itself. Its abundance is 9945408636

Bases of 21368227842

• Binary: 10011111001101001010100100000000010₂
• Hexadecimal: 0x4F9A54802
• Base-36: 9TE3A4I

Squares and roots of 21368227842

• 21368227842 squared (21368227842²) is 456601161107623976964
• 21368227842 cubed (21368227842³) is 9756757643469458223028911431688
• The square root of 21368227842 is 146178.7530457145
• The cube root of 21368227842 is 2774.9564299953

Scales and comparisons

• 21,368,227,842 seconds is equal to 679 years, 23 weeks, 10 hours, 50 minutes, 42 seconds.
• To count from 1 to 21,368,227,842 would take you about one thousand, three hundred fifty-eight 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 21368227842 cubic inches would be around 231.2 feet tall.

Recreational maths with 21368227842

• 21368227842 backwards is 24872286312
• The number of decimal digits it has is: 11
• The sum of 21368227842's digits is 45
• More coming soon!