21221144576

Names of 21221144576

• Cardinal: 21221144576 can be written as Twenty-one billion, two hundred twenty-one million, one hundred forty-four thousand, five hundred seventy-six.

Scientific notation

• Scientific notation: 2.1221144576 × 10¹⁰

Factors of 21221144576

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 4691

Divisors of 21221144576

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 16 32 37 61 64 74 122 128 148 244 256 296 488 512 592 976 1024 1184 1952 2048 2257 2368 3904 4514 4591 4736 7808 9028 9182 9472 15616 18056 18364 18944 31232 36112 36728 37888 62464 72224 73456 75776 124928 144448 146912 169867 280051 288896 293824 339734 560102 577792 587648 679468 1120204 1155584 1175296 1358936 2240408 2311168 2350592 2717872 4480816 4622336 4701184 5435744 8961632 9402368 10361887 10871488 17923264 20723774 21742976 35846528 41447548 43485952 71693056 82895096 86971904 143386112 165790192 173943808 286772224 331580384 347887616 573544448 663160768 1326321536 2652643072 5305286144 10610572288 21221144576
• Sum of all divisors σ(n): 44302789440
• Sum of proper divisors (its aliquot sum) s(n): 23081644864
• 21221144576 is an abundant number, because the sum of its proper divisors (23081644864) is greater than itself. Its abundance is 1860500288

Bases of 21221144576

• Binary: 10011110000111000001111100000000000₂
• Hexadecimal: 0x4F0E0F800
• Base-36: 9QYIRY8

Squares and roots of 21221144576

• 21221144576 squared (21221144576²) is 450336977115494219776
• 21221144576 cubed (21221144576³) is 9556666099286706287558814334976
• The square root of 21221144576 is 145674.7904614935
• The cube root of 21221144576 is 2768.5748413527

Scales and comparisons

• 21,221,144,576 seconds is equal to 674 years, 39 weeks, 6 days, 2 hours, 22 minutes, 56 seconds.
• To count from 1 to 21,221,144,576 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 21221144576 cubic inches would be around 230.7 feet tall.

Recreational maths with 21221144576

• 21221144576 backwards is 67544112212
• The number of decimal digits it has is: 11
• The sum of 21221144576's digits is 35
• More coming soon!