21495988224

Names of 21495988224

• Cardinal: 21495988224 can be written as Twenty-one billion, four hundred ninety-five million, nine hundred eighty-eight thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 2.1495988224 × 10¹⁰

Factors of 21495988224

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 48598

Divisors of 21495988224

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 864 1024 1152 1536 1728 2048 2304 3072 3456 4096 4608 6144 6912 8192 9216 12288 13824 16384 18432 24576 27648 36864 48593 49152 55296 73728 97186 110592 145779 147456 194372 221184 291558 388744 437337 442368 583116 777488 874674 1166232 1312011 1554976 1749348 2332464 2624022 3109952 3498696 4664928 5248044 6219904 6997392 9329856 10496088 12439808 13994784 18659712 20992176 24879616 27989568 37319424 41984352 49759232 55979136 74638848 83968704 99518464 111958272 149277696 167937408 199036928 223916544 298555392 335874816 398073856 447833088 597110784 671749632 796147712 895666176 1194221568 1343499264 1791332352 2388443136 2686998528 3582664704 5373997056 7165329408 10747994112 21495988224
• Sum of all divisors σ(n): 63691183920
• Sum of proper divisors (its aliquot sum) s(n): 42195195696
• 21495988224 is an abundant number, because the sum of its proper divisors (42195195696) is greater than itself. Its abundance is 20699207472

Bases of 21495988224

• Binary: 10100000001010000101100000000000000₂
• Hexadecimal: 0x50142C000
• Base-36: 9VI5MO0

Squares and roots of 21495988224

• 21495988224 squared (21495988224²) is 462077509726346674176
• 21495988224 cubed (21495988224³) is 9932812707652793570628860903424
• The square root of 21495988224 is 146615.1023053219
• The cube root of 21495988224 is 2780.4759214875

Scales and comparisons

• 21,495,988,224 seconds is equal to 683 years, 26 weeks, 2 days, 3 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,495,988,224 would take you about one thousand, three hundred sixty-seven 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 21495988224 cubic inches would be around 231.7 feet tall.

Recreational maths with 21495988224

• 21495988224 backwards is 42288959412
• 21495988224 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21495988224's digits is 54
• More coming soon!