21003163216

Names of 21003163216

• Cardinal: 21003163216 can be written as Twenty-one billion, three million, one hundred sixty-three thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1003163216 × 10¹⁰

Factors of 21003163216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 315

Divisors of 21003163216

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 56 67 98 112 134 196 239 268 343 392 469 478 536 686 784 938 956 1072 1372 1673 1876 1912 2744 3283 3346 3752 3824 5488 6566 6692 7504 11711 13132 13384 16013 22981 23422 26264 26768 32026 45962 46844 52528 57121 64052 81977 91924 93688 112091 114242 128104 163954 183848 187376 224182 228484 256208 327908 367696 399847 448364 456968 655816 784637 799694 896728 913936 1311632 1569274 1599388 1793456 2798929 3138548 3198776 3827107 5492459 5597858 6277096 6397552 7654214 10984918 11195716 12554192 15308428 19592503 21969836 22391432 26789749 30616856 39185006 43939672 44782864 53579498 61233712 78370012 87879344 107158996 156740024 187528243 214317992 313480048 375056486 428635984 750112972 1312697701 1500225944 2625395402 3000451888 5250790804 10501581608 21003163216
• Sum of all divisors σ(n): 48366795200
• Sum of proper divisors (its aliquot sum) s(n): 27363631984
• 21003163216 is an abundant number, because the sum of its proper divisors (27363631984) is greater than itself. Its abundance is 6360468768

Bases of 21003163216

• Binary: 10011100011111000101101011001010000₂
• Hexadecimal: 0x4E3E2D650
• Base-36: 9NCQOGG

Squares and roots of 21003163216

• 21003163216 squared (21003163216²) is 441132865077935462656
• 21003163216 cubed (21003163216³) is 9265185565173585082478440861696
• The square root of 21003163216 is 144924.6811830199
• The cube root of 21003163216 is 2759.0626943961

Scales and comparisons

• 21,003,163,216 seconds is equal to 667 years, 43 weeks, 3 days, 4 hours, 16 seconds.
• To count from 1 to 21,003,163,216 would take you about one thousand, three hundred thirty-five 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 21003163216 cubic inches would be around 229.9 feet tall.

Recreational maths with 21003163216

• 21003163216 backwards is 61236130012
• The number of decimal digits it has is: 11
• The sum of 21003163216's digits is 25
• More coming soon!