1138831785

Names of 1138831785

• Cardinal: 1138831785 can be written as One billion, one hundred thirty-eight million, eight hundred thirty-one thousand, seven hundred eighty-five.

Scientific notation

• Scientific notation: 1.138831785 × 10⁹

Factors of 1138831785

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 105

Divisors of 1138831785

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 9 13 15 17 19 21 27 35 39 41 45 49 51 57 63 65 85 91 95 105 117 119 123 133 135 147 153 171 189 195 205 221 245 247 255 273 285 287 315 323 351 357 369 399 441 455 459 513 533 585 595 615 637 663 665 697 735 741 765 779 819 833 855 861 931 945 969 1071 1105 1107 1197 1235 1323 1365 1435 1547 1599 1615 1729 1755 1785 1845 1911 1989 1995 2009 2091 2205 2223 2261 2295 2337 2457 2499 2565 2583 2665 2793 2907 3185 3213 3315 3485 3591 3705 3731 3895 4095 4165 4199 4305 4641 4655 4797 4845 4879 5187 5355 5453 5535 5733 5967 5985 6027 6273 6615 6669 6783 7011 7497 7735 7749 7995 8379 8645 8721 9061 9555 9945 10045 10127 10455 10829 11115 11193 11305 11685 12103 12285 12495 12597 12915 13243 13923 13965 14391 14535 14637 15561 15827 16065 16359 17199 17955 18081 18655 18819 20349 20995 21033 22491 23205 23985 24395 25137 25935 26117 27183 27265 28665 29393 29835 30135 30381 31365 32487 33345 33579 33915 34153 35055 36309 37485 37791 38171 38745 39729 41769 41895 43605 43911 45305 46683 47481 49077 50635 54145 54243 55965 60515 61047 62985 63427 66215 69615 70889 71955 73185 77805 78351 79135 81549 81795 85995 88179 90405 91143 92701 94095 97461 100737 101745 102459 105165 108927 112455 113373 114513 119187 125685 130585 131733 135915 142443 146965 147231 151905 162435 167895 170765 172159 181545 188955 190281 190855 198645 205751 208845 212667 219555 233415 235053 237405 244647 245385 264537 271215 273429 278103 292383 305235 307377 317135 326781 343539 354445 357561 391755 407745 427329 440895 443989 455715 463505 487305 496223 503685 512295 516477 544635 566865 570843 572565 595935 617253 638001 648907 658665 705159 712215 736155 793611 834309 860795 922131 951405 1028755 1030617 1063335 1175265 1205113 1223235 1322685 1331967 1367145 1390515 1461915 1488669 1536885 1549431 1633905 1712529 1717695 1787805 1851759 1914003 1946721 2136645 2219945 2481115 2502927 2582385 2854215 3086265 3190005 3244535 3525795 3615339 3968055 3995901 4171545 4466007 4610655 4648293 5153085 5555277 5840163 6025565 6659835 7443345 7747155 8435791 8562645 9258795 9570015 9733605 10846017 11987703 12514635 13398021 17520489 18076695 19979505 22330035 23241465 25307373 27776385 29200815 32538051 42178955 54230085 59938515 66990105 75922119 87602445 126536865 162690255 227766357 379610595 1138831785
• Sum of all divisors σ(n): 2895782400
• Sum of proper divisors (its aliquot sum) s(n): 1756950615
• 1138831785 is an abundant number, because the sum of its proper divisors (1756950615) is greater than itself. Its abundance is 618118830

Bases of 1138831785

• Binary: 1000011111000010011000110101001₂
• Hexadecimal: 0x43E131A9
• Base-36: IU1489

Squares and roots of 1138831785

• 1138831785 squared (1138831785²) is 1296937834526286225
• 1138831785 cubed (1138831785³) is 1476994029127605171037661625
• The square root of 1138831785 is 33746.5818269051
• The cube root of 1138831785 is 1044.2869719101

Scales and comparisons

• 1,138,831,785 seconds is equal to 36 years, 10 weeks, 6 days, 22 hours, 9 minutes, 45 seconds.
• To count from 1 to 1,138,831,785 would take you about seventy-two 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 1138831785 cubic inches would be around 87 feet tall.

Recreational maths with 1138831785

• 1138831785 backwards is 5871388311
• 1138831785 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1138831785's digits is 45
• More coming soon!