18533449728

Names of 18533449728

• Cardinal: 18533449728 can be written as Eighteen billion, five hundred thirty-three million, four hundred forty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8533449728 × 10¹⁰

Factors of 18533449728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 5242

Divisors of 18533449728

• Number of divisors d(n): 144
• 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 5237 6144 6912 8192 9216 10474 12288 13824 15711 16384 18432 20948 24576 27648 31422 32768 36864 41896 47133 49152 55296 62844 65536 73728 83792 94266 98304 110592 125688 131072 141399 147456 167584 188532 196608 221184 251376 282798 294912 335168 377064 393216 442368 502752 565596 589824 670336 754128 884736 1005504 1131192 1179648 1340672 1508256 1769472 2011008 2262384 2681344 3016512 3538944 4022016 4524768 5362688 6033024 8044032 9049536 10725376 12066048 16088064 18099072 21450752 24132096 32176128 36198144 42901504 48264192 64352256 72396288 85803008 96528384 128704512 144792576 171606016 193056768 257409024 289585152 343212032 386113536 514818048 579170304 686424064 772227072 1029636096 1158340608 1544454144 2059272192 2316681216 3088908288 4633362432 6177816576 9266724864 18533449728
• Sum of all divisors σ(n): 54924201360
• Sum of proper divisors (its aliquot sum) s(n): 36390751632
• 18533449728 is an abundant number, because the sum of its proper divisors (36390751632) is greater than itself. Its abundance is 17857301904

Bases of 18533449728

• Binary: 10001010000101011100000000000000000₂
• Hexadecimal: 0x450AE0000
• Base-36: 8IIC5C0

Squares and roots of 18533449728

• 18533449728 squared (18533449728²) is 343488758820303273984
• 18533449728 cubed (18533449728³) is 6366031643729207314096274276352
• The square root of 18533449728 is 136137.6132007609
• The cube root of 18533449728 is 2646.3792834575

Scales and comparisons

• 18,533,449,728 seconds is equal to 589 years, 15 weeks, 6 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,533,449,728 would take you about one thousand, one hundred seventy-eight 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 18533449728 cubic inches would be around 220.5 feet tall.

Recreational maths with 18533449728

• 18533449728 backwards is 82794433581
• 18533449728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18533449728's digits is 54
• More coming soon!