18140784640

Names of 18140784640

• Cardinal: 18140784640 can be written as Eighteen billion, one hundred forty million, seven hundred eighty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.814078464 × 10¹⁰

Factors of 18140784640

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 18

Divisors of 18140784640

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 128 160 176 220 242 256 320 352 440 484 512 605 640 704 880 968 1024 1210 1280 1331 1408 1760 1936 2048 2420 2560 2662 2816 3520 3872 4840 5120 5324 5632 6655 7040 7744 9680 10240 10648 11264 13310 14080 14641 15488 19360 21296 22528 26620 28160 29282 30976 38720 42592 53240 56320 58564 61952 73205 77440 85184 106480 112640 117128 123904 146410 154880 161051 170368 212960 234256 247808 292820 309760 322102 340736 425920 468512 585640 619520 644204 681472 805255 851840 937024 1171280 1239040 1288408 1362944 1610510 1703680 1771561 1874048 2342560 2576816 2725888 3221020 3407360 3543122 3748096 4685120 5153632 6442040 6814720 7086244 7496192 8857805 9370240 10307264 12884080 13629440 14172488 14992384 17715610 18740480 20614528 25768160 28344976 29984768 35431220 37480960 41229056 51536320 56689952 70862440 74961920 82458112 103072640 113379904 141724880 149923840 164916224 206145280 226759808 283449760 329832448 412290560 453519616 566899520 824581120 907039232 1133799040 1649162240 1814078464 2267598080 3628156928 4535196160 9070392320 18140784640
• Sum of all divisors σ(n): 47879976690
• Sum of proper divisors (its aliquot sum) s(n): 29739192050
• 18140784640 is an abundant number, because the sum of its proper divisors (29739192050) is greater than itself. Its abundance is 11598407410

Bases of 18140784640

• Binary: 10000111001010001100110100000000000₂
• Hexadecimal: 0x439466800
• Base-36: 8C0JZ0G

Squares and roots of 18140784640

• 18140784640 squared (18140784640²) is 329088067354859929600
• 18140784640 cubed (18140784640³) is 5969915757478328440239161344000
• The square root of 18140784640 is 134687.7301018917
• The cube root of 18140784640 is 2627.5562528639
• Being both a perfect square and a perfect cube, 18140784640 is also a perfect sixth number.

Scales and comparisons

• 18,140,784,640 seconds is equal to 576 years, 42 weeks, 4 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 18,140,784,640 would take you about one thousand, one hundred fifty-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 18140784640 cubic inches would be around 219 feet tall.

Recreational maths with 18140784640

• 18140784640 backwards is 04648704181
• The number of decimal digits it has is: 11
• The sum of 18140784640's digits is 43
• More coming soon!