18399791844

Names of 18399791844

• Cardinal: 18399791844 can be written as Eighteen billion, three hundred ninety-nine million, seven hundred ninety-one thousand, eight hundred forty-four.

Scientific notation

• Scientific notation: 1.8399791844 × 10¹⁰

Factors of 18399791844

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 482

Divisors of 18399791844

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 81 84 98 108 126 147 162 189 196 229 241 243 252 294 324 343 378 441 458 482 486 567 588 686 687 723 756 882 916 964 972 1029 1134 1323 1372 1374 1446 1603 1687 1701 1764 2058 2061 2169 2268 2646 2748 2892 3087 3206 3374 3402 3969 4116 4122 4338 4809 5061 5292 6174 6183 6412 6507 6748 6804 7938 8244 8676 9261 9618 10122 11221 11809 11907 12348 12366 13014 14427 15183 15876 18522 18549 19236 19521 20244 22442 23618 23814 24732 26028 27783 28854 30366 33663 35427 37044 37098 39042 43281 44884 45549 47236 47628 55189 55566 55647 57708 58563 60732 67326 70854 74196 78084 78547 82663 83349 86562 91098 100989 106281 110378 111132 111294 117126 129843 134652 136647 141708 157094 165326 165567 166698 173124 182196 201978 212562 220756 222588 234252 235641 247989 259686 273294 302967 314188 318843 330652 331134 333396 386323 389529 403956 409941 425124 471282 495978 496701 519372 546588 605934 637686 662268 706923 743967 772646 779058 819882 908901 942564 956529 991956 993402 1158969 1211868 1275372 1413846 1487934 1490103 1545292 1558116 1639764 1817802 1913058 1986804 2120769 2231901 2317938 2704261 2726703 2827692 2869587 2975868 2980206 3476907 3635604 3826116 4241538 4463802 4470309 4635876 5408522 5453406 5739174 5960412 6362307 6695703 6953814 8112783 8483076 8927604 8940618 10430721 10817044 10906812 11478348 12724614 13391406 13410927 13907628 16225566 17881236 18929827 19086921 20087109 20861442 24338349 25449228 26782812 26821854 31292163 32451132 37859654 38173842 40174218 41722884 48676698 53643708 56789481 62584326 73015047 75719308 76347684 80348436 93876489 97353396 113578962 125168652 146030094 170368443 187752978 219045141 227157924 292060188 340736886 375505956 438090282 511105329 657135423 681473772 876180564 1022210658 1314270846 1533315987 2044421316 2628541692 3066631974 4599947961 6133263948 9199895922 18399791844
• Sum of all divisors σ(n): 56728672000
• Sum of proper divisors (its aliquot sum) s(n): 38328880156
• 18399791844 is an abundant number, because the sum of its proper divisors (38328880156) is greater than itself. Its abundance is 19929088312

Bases of 18399791844

• Binary: 10001001000101101101000101011100100₂
• Hexadecimal: 0x448B68AE4
• Base-36: 8GARE90

Squares and roots of 18399791844

• 18399791844 squared (18399791844²) is 338552339902528920336
• 18399791844 cubed (18399791844³) is 6229292582505667383372458539584
• The square root of 18399791844 is 135645.8323871397
• The cube root of 18399791844 is 2640.0022882211

Scales and comparisons

• 18,399,791,844 seconds is equal to 585 years, 2 weeks, 6 days, 13 hours, 17 minutes, 24 seconds.
• To count from 1 to 18,399,791,844 would take you about one thousand, one hundred seventy 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 18399791844 cubic inches would be around 220 feet tall.

Recreational maths with 18399791844

• 18399791844 backwards is 44819799381
• 18399791844 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18399791844's digits is 63
• More coming soon!