18464761728

Names of 18464761728

• Cardinal: 18464761728 can be written as Eighteen billion, four hundred sixty-four million, seven hundred sixty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8464761728 × 10¹⁰

Factors of 18464761728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 109049

Divisors of 18464761728

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 84 96 98 108 112 126 128 144 147 168 189 192 196 216 224 252 288 294 336 378 384 392 432 441 448 504 576 588 672 756 784 864 882 896 1008 1152 1176 1323 1344 1512 1568 1728 1764 2016 2352 2646 2688 3024 3136 3456 3528 4032 4704 5292 6048 6272 7056 8064 9408 10584 12096 14112 18816 21168 24192 28224 42336 56448 84672 109037 169344 218074 327111 436148 654222 763259 872296 981333 1308444 1526518 1744592 1962666 2289777 2616888 2943999 3053036 3489184 3925332 4579554 5233776 5342813 5887998 6106072 6869331 6978368 7850664 9159108 10467552 10685626 11775996 12212144 13738662 13956736 15701328 16028439 18318216 20607993 20935104 21371252 23551992 24424288 27477324 31402656 32056878 36636432 41215986 41870208 42742504 47103984 48085317 48848576 54954648 62805312 64113756 73272864 82431972 85485008 94207968 96170634 97697152 109909296 125610624 128227512 144255951 146545728 164863944 170970016 188415936 192341268 219818592 256455024 288511902 293091456 329727888 341940032 376831872 384682536 439637184 512910048 577023804 659455776 683880064 769365072 879274368 1025820096 1154047608 1318911552 1538730144 2051640192 2308095216 2637823104 3077460288 4616190432 6154920576 9232380864 18464761728
• Sum of all divisors σ(n): 63394693200
• Sum of proper divisors (its aliquot sum) s(n): 44929931472
• 18464761728 is an abundant number, because the sum of its proper divisors (44929931472) is greater than itself. Its abundance is 26465169744

Bases of 18464761728

• Binary: 10001001100100101011110011110000000₂
• Hexadecimal: 0x44C95E780
• Base-36: 8HDFXC0

Squares and roots of 18464761728

• 18464761728 squared (18464761728²) is 340947425671813545984
• 18464761728 cubed (18464761728³) is 6295512976805027452237331300352
• The square root of 18464761728 is 135885.1048790853
• The cube root of 18464761728 is 2643.1059312495

Scales and comparisons

• 18,464,761,728 seconds is equal to 587 years, 6 weeks, 2 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,464,761,728 would take you about one thousand, one hundred seventy-four 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 18464761728 cubic inches would be around 220.3 feet tall.

Recreational maths with 18464761728

• 18464761728 backwards is 82716746481
• 18464761728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18464761728's digits is 54
• More coming soon!