18008553472

Names of 18008553472

• Cardinal: 18008553472 can be written as Eighteen billion, eight million, five hundred fifty-three thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8008553472 × 10¹⁰

Factors of 18008553472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 7455

Divisors of 18008553472

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 169 182 208 224 256 338 364 416 448 512 676 728 832 896 1024 1183 1352 1456 1664 1792 2048 2366 2704 2912 3328 3584 4732 5408 5824 6656 7168 7433 9464 10816 11648 13312 14336 14866 18928 21632 23296 26624 29732 37856 43264 46592 52031 59464 75712 86528 93184 96629 104062 118928 151424 173056 186368 193258 208124 237856 302848 346112 386516 416248 475712 605696 676403 773032 832496 951424 1211392 1256177 1352806 1546064 1664992 1902848 2422784 2512354 2705612 3092128 3329984 3805696 5024708 5411224 6184256 6659968 7611392 8793239 10049416 10822448 12368512 13319936 15222784 17586478 20098832 21644896 24737024 26639872 35172956 40197664 43289792 49474048 53279744 70345912 80395328 86579584 98948096 106559488 140691824 160790656 173159168 197896192 281383648 321581312 346318336 562767296 643162624 692636672 1125534592 1286325248 1385273344 2251069184 2572650496 4502138368 9004276736 18008553472
• Sum of all divisors σ(n): 44567424720
• Sum of proper divisors (its aliquot sum) s(n): 26558871248
• 18008553472 is an abundant number, because the sum of its proper divisors (26558871248) is greater than itself. Its abundance is 8550317776

Bases of 18008553472

• Binary: 10000110001011001001011100000000000₂
• Hexadecimal: 0x43164B800
• Base-36: 89TTSSG

Squares and roots of 18008553472

• 18008553472 squared (18008553472²) is 324307998153883254784
• 18008553472 cubed (18008553472³) is 5840317926151483878223063810048
• The square root of 18008553472 is 134195.9517720263
• The cube root of 18008553472 is 2621.1564476971

Scales and comparisons

• 18,008,553,472 seconds is equal to 572 years, 32 weeks, 7 hours, 57 minutes, 52 seconds.
• To count from 1 to 18,008,553,472 would take you about one thousand, one hundred forty-five 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 18008553472 cubic inches would be around 218.4 feet tall.

Recreational maths with 18008553472

• 18008553472 backwards is 27435580081
• The number of decimal digits it has is: 11
• The sum of 18008553472's digits is 43
• More coming soon!