18449969920

Names of 18449969920

• Cardinal: 18449969920 can be written as Eighteen billion, four hundred forty-nine million, nine hundred sixty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.844996992 × 10¹⁰

Factors of 18449969920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 374

Divisors of 18449969920

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 40 53 62 64 80 106 124 128 155 160 212 248 256 265 283 310 320 424 496 530 566 620 640 848 961 992 1060 1132 1240 1280 1415 1643 1696 1922 1984 2120 2264 2480 2830 3286 3392 3844 3968 4240 4528 4805 4960 5660 6572 6784 7688 7936 8215 8480 8773 9056 9610 9920 11320 13144 13568 14999 15376 16430 16960 17546 18112 19220 19840 22640 26288 29998 30752 32860 33920 35092 36224 38440 39680 43865 45280 50933 52576 59996 61504 65720 67840 70184 72448 74995 76880 87730 90560 101866 105152 119992 123008 131440 140368 149990 153760 175460 181120 203732 210304 239984 246016 254665 262880 271963 280736 299980 307520 350920 362240 407464 420608 464969 479968 509330 525760 543926 561472 599960 615040 701840 814928 929938 959936 1018660 1051520 1087852 1122944 1199920 1230080 1359815 1403680 1629856 1859876 1919872 2037320 2103040 2175704 2245888 2324845 2399840 2719630 2807360 3259712 3719752 3839744 4074640 4351408 4649690 4799680 5439260 5614720 6519424 7439504 8149280 8702816 9299380 9599360 10878520 11229440 13038848 14414039 14879008 16298560 17405632 18598760 19198720 21757040 28828078 29758016 32597120 34811264 37197520 43514080 57656156 59516032 65194240 69622528 72070195 74395040 87028160 115312312 119032064 144140390 148790080 174056320 230624624 288280780 297580160 348112640 461249248 576561560 595160320 922498496 1153123120 1844996992 2306246240 3689993984 4612492480 9224984960 18449969920
• Sum of all divisors σ(n): 46691034768
• Sum of proper divisors (its aliquot sum) s(n): 28241064848
• 18449969920 is an abundant number, because the sum of its proper divisors (28241064848) is greater than itself. Its abundance is 9791094928

Bases of 18449969920

• Binary: 10001001011101101000011001100000000₂
• Hexadecimal: 0x44BB43300
• Base-36: 8H4MVWG

Squares and roots of 18449969920

• 18449969920 squared (18449969920²) is 340401390048904806400
• 18449969920 cubed (18449969920³) is 6280395407128481007023423488000
• The square root of 18449969920 is 135830.6663460057
• The cube root of 18449969920 is 2642.3999602315

Scales and comparisons

• 18,449,969,920 seconds is equal to 586 years, 33 weeks, 6 days, 7 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,449,969,920 would take you about one thousand, one hundred seventy-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 18449969920 cubic inches would be around 220.2 feet tall.

Recreational maths with 18449969920

• 18449969920 backwards is 02996994481
• The number of decimal digits it has is: 11
• The sum of 18449969920's digits is 61
• More coming soon!