18613193472

Names of 18613193472

• Cardinal: 18613193472 can be written as Eighteen billion, six hundred thirteen million, one hundred ninety-three thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8613193472 × 10¹⁰

Factors of 18613193472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 552

Divisors of 18613193472

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 547 576 648 768 864 972 1094 1152 1296 1641 1728 1944 2188 2304 2592 3282 3456 3888 4376 4923 5184 6564 6912 7776 8752 9846 10368 13128 14769 15552 17504 19692 20736 26256 29538 31104 35008 39384 44307 52512 59076 62208 70016 78768 88614 105024 118152 132921 140032 157536 177228 210048 236304 265842 299209 315072 354456 420096 472608 531684 598418 630144 708912 897627 945216 1063368 1196836 1260288 1417824 1795254 1890432 2126736 2393672 2692881 2835648 3590508 3780864 4253472 4787344 5385762 5671296 7181016 8078643 8506944 9574688 10771524 11342592 14362032 16157286 17013888 19149376 21543048 24235929 28724064 32314572 34027776 38298752 43086096 48471858 57448128 64629144 72707787 76597504 86172192 96943716 114896256 129258288 145415574 172344384 193887432 229792512 258516576 290831148 344688768 387774864 517033152 581662296 689377536 775549728 1034066304 1163324592 1551099456 2068132608 2326649184 3102198912 4653298368 6204397824 9306596736 18613193472
• Sum of all divisors σ(n): 55756001028
• Sum of proper divisors (its aliquot sum) s(n): 37142807556
• 18613193472 is an abundant number, because the sum of its proper divisors (37142807556) is greater than itself. Its abundance is 18529614084

Bases of 18613193472

• Binary: 10001010101011011101100101100000000₂
• Hexadecimal: 0x4556ECB00
• Base-36: 8JTTC00

Squares and roots of 18613193472

• 18613193472 squared (18613193472²) is 346450971226103414784
• 18613193472 cubed (18613193472³) is 6448558955993767916054457090048
• The square root of 18613193472 is 136430.1780105855
• The cube root of 18613193472 is 2650.1693719679

Scales and comparisons

• 18,613,193,472 seconds is equal to 591 years, 43 weeks, 5 days, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,613,193,472 would take you about one thousand, one hundred eighty-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 18613193472 cubic inches would be around 220.8 feet tall.

Recreational maths with 18613193472

• 18613193472 backwards is 27439131681
• The number of decimal digits it has is: 11
• The sum of 18613193472's digits is 45
• More coming soon!