28136372121

Names of 28136372121

• Cardinal: 28136372121 can be written as Twenty-eight billion, one hundred thirty-six million, three hundred seventy-two thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 2.8136372121 × 10¹⁰

Factors of 28136372121

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 67

Divisors of 28136372121

• Number of divisors d(n): 243
• Complete list of divisors:
  1 3 9 11 13 17 23 33 39 51 69 99 117 121 143 153 169 187 207 221 253 289 299 363 391 429 507 529 561 663 759 867 897 1089 1173 1287 1521 1573 1587 1683 1859 1989 2057 2277 2431 2601 2691 2783 2873 3179 3289 3519 3757 3887 4301 4719 4761 5083 5577 5819 6171 6647 6877 7293 8349 8619 8993 9537 9867 11271 11661 12903 14157 15249 16731 17457 18513 19941 20449 20631 21879 25047 25857 26741 26979 28611 29601 31603 33813 34969 34983 36179 38709 41327 42757 45747 47311 48841 52371 55913 59823 61347 61893 64009 66079 73117 75647 80223 80937 86411 89401 94809 98923 104907 108537 116909 123981 128271 141933 146523 152881 167739 184041 192027 198237 219351 226941 240669 259233 268203 284427 296769 314721 325611 347633 350727 371943 384813 425799 439569 454597 458643 470327 503217 537251 576081 594711 615043 658053 680823 726869 777699 804287 804609 832117 890307 950521 983411 1042899 1052181 1088153 1123343 1285999 1363791 1375929 1410981 1519817 1611753 1681691 1845129 1987453 2180607 2412861 2496351 2851563 2950233 3128697 3264459 3370029 3857997 4091373 4232943 4559451 4835259 5045073 5535387 5909761 5962359 6541821 7238583 7489053 7995559 8554689 8850699 9793377 10110087 10455731 10817521 11573991 12356773 13678353 14145989 15135219 16717987 17729283 17887077 18498601 21861983 23986677 25836889 31367193 32452563 37070319 42437967 50153961 53187849 55495803 65585949 71960031 77510667 94101579 97357689 111210957 127313901 135924503 150461883 166487409 183897857 196757847 232532001 240481813 284205779 407773509 551693571 721445439 852617337 1223320527 1655080713 2164336317 2557852011 3126263569 9378790707 28136372121
• Sum of all divisors σ(n): 53716732797
• Sum of proper divisors (its aliquot sum) s(n): 25580360676
• 28136372121 is a deficient number, because the sum of its proper divisors (25580360676) is less than itself. Its deficiency is 2556011445

Bases of 28136372121

• Binary: 11010001101000011101111011110011001₂
• Hexadecimal: 0x68D0EF799
• Base-36: CXBO3O9

Squares and roots of 28136372121

• 28136372121 squared (28136372121²) is 791655436131386038641
• 28136372121 cubed (28136372121³) is 22274311942605226230707261127561
• 28136372121 is a perfect square number. Its square root is 167739
• The cube root of 28136372121 is 3041.5108242559

Scales and comparisons

• 28,136,372,121 seconds is equal to 894 years, 33 weeks, 5 days, 10 hours, 55 minutes, 21 seconds.
• To count from 1 to 28,136,372,121 would take you about one thousand, seven hundred eighty-nine 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 28136372121 cubic inches would be around 253.5 feet tall.

Recreational maths with 28136372121

• 28136372121 backwards is 12127363182
• The number of decimal digits it has is: 11
• The sum of 28136372121's digits is 36
• More coming soon!