18293788672

Names of 18293788672

• Cardinal: 18293788672 can be written as Eighteen billion, two hundred ninety-three million, seven hundred eighty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8293788672 × 10¹⁰

Factors of 18293788672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 5029

Divisors of 18293788672

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 4 8 16 17 32 34 53 64 68 106 128 136 212 256 272 424 512 544 848 901 1024 1088 1696 1802 2048 2176 3392 3604 4096 4352 4957 6784 7208 8704 9914 13568 14416 17408 19828 27136 28832 34816 39656 54272 57664 69632 79312 84269 108544 115328 158624 168538 217088 230656 262721 317248 337076 461312 525442 634496 674152 922624 1050884 1268992 1348304 1845248 2101768 2537984 2696608 3690496 4203536 4466257 5075968 5393216 8407072 8932514 10151936 10786432 16814144 17865028 20303872 21572864 33628288 35730056 43145728 67256576 71460112 86291456 134513152 142920224 172582912 269026304 285840448 345165824 538052608 571680896 1076105216 1143361792 2286723584 4573447168 9146894336 18293788672
• Sum of all divisors σ(n): 39473870616
• Sum of proper divisors (its aliquot sum) s(n): 21180081944
• 18293788672 is an abundant number, because the sum of its proper divisors (21180081944) is greater than itself. Its abundance is 2886293272

Bases of 18293788672

• Binary: 10001000010011001010001000000000000₂
• Hexadecimal: 0x442651000
• Base-36: 8EJNDOG

Squares and roots of 18293788672

• 18293788672 squared (18293788672²) is 334662703975795523584
• 18293788672 cubed (18293788672³) is 6122248782933297511529288040448
• The square root of 18293788672 is 135254.5329074037
• The cube root of 18293788672 is 2634.9227424249

Scales and comparisons

• 18,293,788,672 seconds is equal to 581 years, 35 weeks, 4 days, 15 hours, 57 minutes, 52 seconds.
• To count from 1 to 18,293,788,672 would take you about one thousand, one hundred sixty-three 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 18293788672 cubic inches would be around 219.6 feet tall.

Recreational maths with 18293788672

• 18293788672 backwards is 27688739281
• The number of decimal digits it has is: 11
• The sum of 18293788672's digits is 61
• More coming soon!