18210978918

Names of 18210978918

• Cardinal: 18210978918 can be written as Eighteen billion, two hundred ten million, nine hundred seventy-eight thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 1.8210978918 × 10¹⁰

Factors of 18210978918

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 827

Divisors of 18210978918

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 9 11 17 18 22 33 34 51 61 66 99 102 121 122 153 183 187 198 242 306 363 366 374 549 561 671 726 733 1037 1089 1098 1122 1331 1342 1466 1683 2013 2057 2074 2178 2199 2662 3111 3366 3993 4026 4114 4398 6039 6171 6222 6597 7381 7986 8063 9333 11407 11979 12078 12342 12461 13194 14762 16126 18513 18666 22143 22627 22814 23958 24189 24922 34221 37026 37383 44286 44713 45254 48378 66429 67881 68442 72567 74766 81191 88693 89426 102663 112149 125477 132858 134139 135762 137071 145134 162382 177386 203643 205326 224298 243573 250954 266079 268278 274142 376431 402417 407286 411213 487146 491843 532158 730719 752862 760121 798237 804834 822426 975623 983686 1129293 1233639 1380247 1461438 1475529 1507781 1520242 1596474 1951246 2258586 2280363 2467278 2760494 2926869 2951058 3015562 4140741 4426587 4523343 4560726 5410273 5853738 6841089 8281482 8361331 8780607 8853174 9046686 10820546 12422223 13570029 13682178 16230819 16585591 16722662 17561214 24844446 25083993 27140058 32461638 33171182 48692457 49756773 50167986 59513003 75251979 91974641 97384914 99513546 119026006 149270319 150503958 178539009 183949282 275923923 298540638 357078018 535617027 551847846 827771769 1011721051 1071234054 1655543538 2023442102 3035163153 6070326306 9105489459 18210978918
• Sum of all divisors σ(n): 46769845824
• Sum of proper divisors (its aliquot sum) s(n): 28558866906
• 18210978918 is an abundant number, because the sum of its proper divisors (28558866906) is greater than itself. Its abundance is 10347887988

Bases of 18210978918

• Binary: 10000111101011101010111110001100110₂
• Hexadecimal: 0x43D757C66
• Base-36: 8D6CH9I

Squares and roots of 18210978918

• 18210978918 squared (18210978918²) is 331639753151840450724
• 18210978918 cubed (18210978918³) is 6039484553018890501034381836632
• The square root of 18210978918 is 134948.0600749785
• The cube root of 18210978918 is 2630.9409288255

Scales and comparisons

• 18,210,978,918 seconds is equal to 579 years, 2 weeks, 5 days, 5 hours, 15 minutes, 18 seconds.
• To count from 1 to 18,210,978,918 would take you about one thousand, one hundred fifty-eight 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 18210978918 cubic inches would be around 219.2 feet tall.

Recreational maths with 18210978918

• 18210978918 backwards is 81987901281
• The number of decimal digits it has is: 11
• The sum of 18210978918's digits is 54
• More coming soon!