18135437440

Names of 18135437440

• Cardinal: 18135437440 can be written as Eighteen billion, one hundred thirty-five million, four hundred thirty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.813543744 × 10¹⁰

Factors of 18135437440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 355

Divisors of 18135437440

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 16 20 23 32 40 46 64 80 89 92 109 115 127 128 160 178 184 218 230 254 320 356 368 436 445 460 508 545 635 640 712 736 872 890 920 1016 1090 1270 1424 1472 1744 1780 1840 2032 2047 2180 2507 2540 2848 2921 2944 3488 3560 3680 4064 4094 4360 5014 5080 5696 5842 6976 7120 7360 8128 8188 8720 9701 10028 10160 10235 11303 11392 11684 12535 13843 13952 14240 14605 14720 16256 16376 17440 19402 20056 20320 20470 22606 23368 25070 27686 28480 29210 32752 34880 38804 40112 40640 40940 45212 46736 48505 50140 55372 56515 56960 58420 65504 69215 69760 77608 80224 81280 81880 90424 93472 97010 100280 110744 113030 116840 131008 138430 155216 160448 163760 180848 186944 194020 200560 221488 223123 226060 233680 259969 262016 276860 310432 318389 320896 327520 361696 373888 388040 401120 442976 446246 452120 467360 519938 553720 620864 636778 655040 723392 776080 802240 885952 892492 904240 934720 1039876 1107440 1115615 1232027 1241728 1273556 1299845 1310080 1446784 1552160 1591945 1604480 1771904 1784984 1808480 1869440 2079752 2214880 2231230 2464054 2547112 2599690 3104320 3183890 3569968 3616960 4159504 4429760 4462460 4928108 5094224 5199380 6160135 6208640 6367780 7139936 7233920 8319008 8859520 8924920 9856216 10188448 10398760 12320270 12735560 14279872 16638016 17849840 19712432 20376896 20797520 24640540 25471120 28336621 28559744 33276032 35699680 39424864 40753792 41595040 49281080 50942240 56673242 71399360 78849728 83190080 98562160 101884480 113346484 141683105 142798720 157699456 166380160 197124320 203768960 226692968 283366210 394248640 453385936 566732420 788497280 906771872 1133464840 1813543744 2266929680 3627087488 4533859360 9067718720 18135437440
• Sum of all divisors σ(n): 46531584000
• Sum of proper divisors (its aliquot sum) s(n): 28396146560
• 18135437440 is an abundant number, because the sum of its proper divisors (28396146560) is greater than itself. Its abundance is 10260709120

Bases of 18135437440

• Binary: 10000111000111101001101000010000000₂
• Hexadecimal: 0x438F4D080
• Base-36: 8BXDD34

Squares and roots of 18135437440

• 18135437440 squared (18135437440²) is 328894091140153753600
• 18135437440 cubed (18135437440³) is 5964638214257916670393974784000
• The square root of 18135437440 is 134667.8782783779
• The cube root of 18135437440 is 2627.2980602559

Scales and comparisons

• 18,135,437,440 seconds is equal to 576 years, 33 weeks, 5 days, 21 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,135,437,440 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 18135437440 cubic inches would be around 218.9 feet tall.

Recreational maths with 18135437440

• 18135437440 backwards is 04473453181
• 18135437440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18135437440's digits is 40
• More coming soon!