13012986987

Names of 13012986987

• Cardinal: 13012986987 can be written as Thirteen billion, twelve million, nine hundred eighty-six thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 1.3012986987 × 10¹⁰

Factors of 13012986987

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 71

Divisors of 13012986987

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 7 9 11 13 21 27 33 37 39 49 63 77 91 99 111 117 121 143 147 169 189 231 259 273 297 333 351 363 407 429 441 481 507 539 637 693 777 819 847 999 1001 1089 1183 1221 1287 1323 1443 1521 1573 1617 1813 1859 1911 2079 2197 2331 2457 2541 2849 3003 3267 3367 3549 3663 3861 4329 4477 4563 4719 4851 5291 5439 5577 5733 5929 6253 6591 6993 7007 7623 8281 8547 9009 10101 10647 10989 11011 12987 13013 13431 14157 14553 15379 15873 16317 16731 17199 17787 18759 19773 19943 20449 21021 22869 23569 24167 24843 25641 27027 30303 31339 31941 33033 37037 39039 40293 42471 43771 46137 47619 48951 50193 53361 56277 58201 59319 59829 61347 63063 68783 70707 72501 74529 76923 77077 81289 90909 91091 94017 99099 107653 111111 117117 120879 131313 138411 142857 143143 160083 168831 169169 174603 179487 184041 189189 206349 212121 217503 219373 223587 231231 243867 259259 265837 273273 282051 297297 306397 322959 333333 351351 393939 407407 415233 429429 481481 507507 523809 538461 552123 569023 619047 636363 652509 658119 693693 731601 756613 777777 797511 819819 846153 894179 919191 968877 999999 1002001 1181817 1184183 1222221 1288287 1444443 1522521 1571427 1707069 1857141 1860859 1974357 2081079 2194803 2269839 2333331 2392533 2459457 2682537 2757573 2851849 2906631 3006003 3370367 3552549 3666663 3864861 3983161 4333329 4567563 5121207 5296291 5582577 5923071 6259253 6809517 6999993 7177599 8047611 8272719 8555547 9018009 9835969 10111101 10657647 10999989 11949483 12999987 13026013 15363621 15888873 16747731 18777759 20428551 24142833 25666641 27054027 29507907 30333303 31972941 35848449 37074037 39078039 43814771 47666619 50243193 56333277 68851783 76999923 88523721 90999909 107545347 111222111 117234117 131444313 142999857 168999831 206555349 265571163 333666333 351702351 394332939 481962481 619666047 1000998999 1182998817 1445887443 1858998141 4337662329 13012986987
• Sum of all divisors σ(n): 27425025600
• Sum of proper divisors (its aliquot sum) s(n): 14412038613
• 13012986987 is an abundant number, because the sum of its proper divisors (14412038613) is greater than itself. Its abundance is 1399051626

Bases of 13012986987

• Binary: 1100000111101000100110110001101011₂
• Hexadecimal: 0x307A26C6B
• Base-36: 5Z7LH0R

Squares and roots of 13012986987

• 13012986987 squared (13012986987²) is 169337830323831338169
• 13012986987 cubed (13012986987³) is 2203590982410831199575993406803
• The square root of 13012986987 is 114074.4799988149
• The cube root of 13012986987 is 2352.1174207959

Scales and comparisons

• 13,012,986,987 seconds is equal to 413 years, 40 weeks, 1 day, 6 hours, 36 minutes, 27 seconds.
• To count from 1 to 13,012,986,987 would take you about eight hundred twenty-seven 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 13012986987 cubic inches would be around 196 feet tall.

Recreational maths with 13012986987

• 13012986987 backwards is 78968921031
• The number of decimal digits it has is: 11
• The sum of 13012986987's digits is 54
• More coming soon!