2139009444

Names of 2139009444

• Cardinal: 2139009444 can be written as Two billion, one hundred thirty-nine million, nine thousand, four hundred forty-four.

Scientific notation

• Scientific notation: 2.139009444 × 10⁹

Factors of 2139009444

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1428

Divisors of 2139009444

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 9 11 12 13 18 22 26 27 33 36 39 44 52 54 66 78 81 99 108 117 121 132 143 156 162 198 234 242 243 286 297 324 351 363 396 429 468 484 486 572 594 702 726 858 891 972 1053 1089 1188 1287 1399 1404 1452 1573 1716 1782 2106 2178 2574 2673 2798 3146 3159 3267 3564 3861 4197 4212 4356 4719 5148 5346 5596 6292 6318 6534 7722 8394 9438 9801 10692 11583 12591 12636 13068 14157 15389 15444 16788 18187 18876 19602 23166 25182 28314 29403 30778 34749 36374 37773 39204 42471 46167 46332 50364 54561 56628 58806 61556 69498 72748 75546 84942 92334 109122 113319 117612 127413 138501 138996 151092 163683 169279 169884 184668 200057 218244 226638 254826 277002 327366 338558 339957 382239 400114 415503 453276 491049 507837 509652 554004 600171 654732 677116 679914 764478 800228 831006 982098 1015674 1200342 1246509 1359828 1473147 1523511 1528956 1662012 1800513 1964196 2031348 2200627 2400684 2493018 2946294 3047022 3601026 3739527 4401254 4419441 4570533 4986036 5401539 5892588 6094044 6601881 7202052 7479054 8802508 8838882 9141066 10803078 13203762 13711599 14958108 16204617 17677764 18282132 19805643 21606156 26407524 27423198 32409234 39611286 41134797 48613851 54846396 59416929 64818468 79222572 82269594 97227702 118833858 164539188 178250787 194455404 237667716 356501574 534752361 713003148 1069504722 2139009444
• Sum of all divisors σ(n): 6642126400
• Sum of proper divisors (its aliquot sum) s(n): 4503116956
• 2139009444 is an abundant number, because the sum of its proper divisors (4503116956) is greater than itself. Its abundance is 2364107512

Bases of 2139009444

• Binary: 1111111011111101011000110100100₂
• Hexadecimal: 0x7F7EB1A4
• Base-36: ZDIE90

Squares and roots of 2139009444

• 2139009444 squared (2139009444²) is 4575361401521189136
• 2139009444 cubed (2139009444³) is 9786741247566899528014200384
• The square root of 2139009444 is 46249.4264180649
• The cube root of 2139009444 is 1288.4598818485

Scales and comparisons

• 2,139,009,444 seconds is equal to 68 years, 5 days, 1 hour, 17 minutes, 24 seconds.
• To count from 1 to 2,139,009,444 would take you about one hundred thirty-six 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 2139009444 cubic inches would be around 107.4 feet tall.

Recreational maths with 2139009444

• 2139009444 backwards is 4449009312
• 2139009444 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2139009444's digits is 36
• More coming soon!