12138738444

Names of 12138738444

• Cardinal: 12138738444 can be written as Twelve billion, one hundred thirty-eight million, seven hundred thirty-eight thousand, four hundred forty-four.

Scientific notation

• Scientific notation: 1.2138738444 × 10¹⁰

Factors of 12138738444

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 212

Divisors of 12138738444

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 37 42 49 63 74 84 98 111 126 147 148 163 196 222 252 259 294 326 333 343 441 444 489 518 588 652 666 686 777 882 978 1029 1036 1141 1332 1372 1467 1554 1764 1813 1956 2058 2282 2331 2934 3087 3108 3423 3626 4116 4564 4662 5439 5868 6031 6174 6846 7252 7987 9324 10269 10878 12062 12348 12691 13692 15974 16317 18093 20538 21756 23961 24124 25382 26569 31948 32634 36186 38073 41076 42217 47922 50764 53138 54279 55909 65268 71883 72372 76146 79707 84434 95844 106276 108558 111818 114219 126651 143766 152292 159414 167727 168868 185983 217116 223636 228438 239121 253302 287532 295519 318828 335454 371966 379953 456876 478242 503181 506604 557949 591038 670908 743932 759906 886557 956484 983053 1006362 1115898 1182076 1301881 1519812 1673847 1773114 1966106 2012724 2068633 2231796 2603762 2659671 2949159 3347694 3546228 3905643 3932212 4137266 5207524 5319342 5898318 6205899 6695388 6881371 7811286 8274532 8847477 9113167 10638684 11716929 11796636 12411798 13762742 15622572 17694954 18226334 18617697 20644113 23433858 24823596 27339501 27525484 35389908 36452668 37235394 41288226 46867716 48169597 54679002 61932339 74470788 82018503 82576452 96339194 109358004 123864678 144508791 164037006 192678388 247729356 289017582 328074012 337187179 433526373 578035164 674374358 867052746 1011561537 1348748716 1734105492 2023123074 3034684611 4046246148 6069369222 12138738444
• Sum of all divisors σ(n): 36977085600
• Sum of proper divisors (its aliquot sum) s(n): 24838347156
• 12138738444 is an abundant number, because the sum of its proper divisors (24838347156) is greater than itself. Its abundance is 12699608712

Bases of 12138738444

• Binary: 1011010011100001100111001100001100₂
• Hexadecimal: 0x2D386730C
• Base-36: 5KR3AJ0

Squares and roots of 12138738444

• 12138738444 squared (12138738444²) is 147348971011843541136
• 12138738444 cubed (12138738444³) is 1788630619105306772100658632384
• The square root of 12138738444 is 110175.9431273451
• The cube root of 12138738444 is 2298.2178030057

Scales and comparisons

• 12,138,738,444 seconds is equal to 385 years, 50 weeks, 4 days, 15 hours, 47 minutes, 24 seconds.
• To count from 1 to 12,138,738,444 would take you about seven hundred seventy-one 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 12138738444 cubic inches would be around 191.5 feet tall.

Recreational maths with 12138738444

• 12138738444 backwards is 44483783121
• The number of decimal digits it has is: 11
• The sum of 12138738444's digits is 45
• More coming soon!