28165237828

Names of 28165237828

• Cardinal: 28165237828 can be written as Twenty-eight billion, one hundred sixty-five million, two hundred thirty-seven thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8165237828 × 10¹⁰

Factors of 28165237828

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 126

Divisors of 28165237828

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 13 14 26 28 37 49 52 67 74 91 98 134 148 169 182 196 259 268 338 343 364 469 481 518 637 676 686 871 938 962 1036 1183 1274 1372 1742 1813 1876 1924 2366 2401 2479 2548 3283 3367 3484 3626 4459 4732 4802 4958 6097 6253 6566 6734 7252 8281 8918 9604 9916 11323 12194 12506 12691 13132 13468 16562 16807 17353 17836 22646 22981 23569 24388 25012 25382 31213 32227 33124 33614 34706 42679 43771 45292 45962 47138 50764 57967 62426 64454 67228 69412 79261 85358 87542 88837 91924 94276 115934 121471 124852 128908 158522 160867 164983 170716 175084 177674 218491 225589 231868 242942 298753 306397 317044 321734 329966 355348 405769 418951 436982 451178 485884 554827 597506 612794 621859 643468 659932 811538 837902 850297 873964 902356 1109654 1126069 1154881 1195012 1225588 1243718 1579123 1623076 1675804 1700594 2091271 2144779 2219308 2252138 2309762 2487436 2840383 2932657 3158246 3401188 3883789 4182542 4289558 4504276 4619524 5680766 5865314 5952079 6316492 7767578 8084167 8365084 8579116 11053861 11361532 11730628 11904158 14638897 15013453 15535156 16168334 20528599 22107722 23808316 27186523 29277794 30026906 32336668 41057198 41664553 44215444 54373046 58555588 60053812 77377027 82114396 83329106 105094171 108746092 143700193 154754054 166658212 190305661 210188342 287400386 309508108 380611322 420376684 541639189 574800772 761222644 1005901351 1083278378 2011802702 2166556756 4023605404 7041309457 14082618914 28165237828
• Sum of all divisors σ(n): 64904519232
• Sum of proper divisors (its aliquot sum) s(n): 36739281404
• 28165237828 is an abundant number, because the sum of its proper divisors (36739281404) is greater than itself. Its abundance is 8574043576

Bases of 28165237828

• Binary: 11010001110110001110110110001000100₂
• Hexadecimal: 0x68EC76C44
• Base-36: CXSUSLG

Squares and roots of 28165237828

• 28165237828 squared (28165237828²) is 793280621907802157584
• 28165237828 cubed (28165237828³) is 22342937380376994857124893887552
• The square root of 28165237828 is 167825.0214598527
• The cube root of 28165237828 is 3042.5505858059

Scales and comparisons

• 28,165,237,828 seconds is equal to 895 years, 29 weeks, 3 days, 13 hours, 10 minutes, 28 seconds.
• To count from 1 to 28,165,237,828 would take you about one thousand, seven hundred ninety-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 28165237828 cubic inches would be around 253.5 feet tall.

Recreational maths with 28165237828

• 28165237828 backwards is 82873256182
• 28165237828 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28165237828's digits is 52
• More coming soon!