221564928

Names of 221564928

• Cardinal: 221564928 can be written as Two hundred twenty-one million, five hundred sixty-four thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.21564928 × 10⁸

Factors of 221564928

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 110

Divisors of 221564928

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 19 24 26 32 38 39 48 52 57 64 73 76 78 96 104 114 128 146 152 156 192 208 219 228 247 256 292 304 312 384 416 438 456 494 512 584 608 624 741 768 832 876 912 949 988 1024 1168 1216 1248 1387 1482 1536 1664 1752 1824 1898 1976 2048 2336 2432 2496 2774 2847 2964 3072 3328 3504 3648 3796 3952 4096 4161 4672 4864 4992 5548 5694 5928 6144 6656 7008 7296 7592 7904 8322 9344 9728 9984 11096 11388 11856 12288 13312 14016 14592 15184 15808 16644 18031 18688 19456 19968 22192 22776 23712 26624 28032 29184 30368 31616 33288 36062 37376 38912 39936 44384 45552 47424 53248 54093 56064 58368 60736 63232 66576 72124 74752 77824 79872 88768 91104 94848 108186 112128 116736 121472 126464 133152 144248 149504 159744 177536 182208 189696 216372 224256 233472 242944 252928 266304 288496 299008 355072 364416 379392 432744 448512 485888 505856 532608 576992 710144 728832 758784 865488 897024 971776 1011712 1065216 1153984 1420288 1457664 1517568 1730976 1943552 2130432 2307968 2840576 2915328 3035136 3461952 3887104 4260864 4615936 5681152 5830656 6923904 8521728 9231872 11661312 13847808 17043456 18463744 27695616 36927488 55391232 73854976 110782464 221564928
• Sum of all divisors σ(n): 678870080
• Sum of proper divisors (its aliquot sum) s(n): 457305152
• 221564928 is an abundant number, because the sum of its proper divisors (457305152) is greater than itself. Its abundance is 235740224

Bases of 221564928

• Binary: 1101001101001101000000000000₂
• Hexadecimal: 0xD34D000
• Base-36: 3NWWLC

Squares and roots of 221564928

• 221564928 squared (221564928²) is 49091017319645184
• 221564928 cubed (221564928³) is 10876847717873938178506752
• The square root of 221564928 is 14885.0572051303
• The cube root of 221564928 is 605.1090830789

Scales and comparisons

• 221,564,928 seconds is equal to 7 years, 2 weeks, 2 days, 9 hours, 48 minutes, 48 seconds.
• To count from 1 to 221,564,928 would take you about ten 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 221564928 cubic inches would be around 50.4 feet tall.

Recreational maths with 221564928

• 221564928 backwards is 829465122
• 221564928 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 221564928's digits is 39
• More coming soon!