18120813985872

Names of 18120813985872

• Cardinal: 18120813985872 can be written as Eighteen trillion, one hundred twenty billion, eight hundred thirteen million, nine hundred eighty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8120813985872 × 10¹³

Factors of 18120813985872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 201769

Divisors of 18120813985872

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 27 36 38 39 48 52 54 57 72 76 78 81 104 108 114 117 144 152 156 162 171 208 216 228 234 247 281 304 312 324 342 351 432 456 468 494 513 562 624 648 684 702 741 843 912 936 988 1026 1053 1124 1296 1368 1404 1482 1539 1686 1872 1976 2052 2106 2223 2248 2529 2736 2808 2964 3078 3372 3653 3952 4104 4212 4446 4496 5058 5339 5616 5928 6156 6669 6744 7306 7587 8208 8424 8892 10116 10678 10959 11856 12312 13338 13488 14612 15174 16017 16848 17784 20007 20232 21356 21918 22761 24624 26676 29224 30348 32034 32877 35568 40014 40464 42712 43836 45522 48051 53352 58448 60696 64068 65754 69407 80028 85424 87672 91044 96102 98631 106704 121392 128136 131508 138814 144153 160056 175344 182088 192204 197262 201451 208221 256272 263016 277628 288306 295893 320112 364176 384408 394524 402902 416442 432459 526032 555256 576612 591786 604353 624663 768816 789048 805804 832884 864918 1110512 1153224 1183572 1208706 1249326 1578096 1611608 1665768 1729836 1813059 1873989 2306448 2367144 2417412 2498652 2618863 3223216 3331536 3459672 3626118 3747978 3827569 4734288 4834824 4997304 5237726 5439177 5621967 6919344 7252236 7495956 7655138 7856589 9669648 9994608 10475452 10878354 11243934 11482707 14504472 14991912 15310276 15713178 16317531 20950904 21756708 22487868 22965414 23569767 29008944 29983824 30620552 31426356 32635062 34448121 41901808 43513416 44975736 45930828 47139534 49758397 56607731 61241104 62852712 65270124 68896242 70709301 87026832 89951472 91861656 94279068 99516794 103344363 113215462 125705424 130540248 137792484 141418602 149275191 169823193 183723312 188558136 199033588 206688726 212127903 226430924 261080496 275584968 282837204 298550382 310033089 339646386 377116272 398067176 413377452 424255806 447825573 452861848 509469579 551169936 565674408 597100764 620066178 679292772 735900503 796134352 826754904 848511612 895651146 905723696 1018939158 1075546889 1131348816 1194201528 1240132356 1343476719 1358585544 1471801006 1528408737 1653509808 1697023224 1791302292 2037878316 2151093778 2207701509 2388403056 2480264712 2686953438 2717171088 2943602012 3056817474 3226640667 3394046448 3582604584 4030430157 4075756632 4302187556 4415403018 4585226211 4960529424 5373906876 5887204024 6113634948 6453281334 6623104527 7165209168 8060860314 8151513264 8604375112 8830806036 9170452422 9679922001 10747813752 11774408048 12227269896 12906562668 13246209054 13982109557 16121720628 17208750224 17661612072 18340904844 19359844002 19869313581 21495627504 24454539792 25813125336 26492418108 27964219114 29039766003 32243441256 35323224144 36681809688 38719688004 39738627162 41946328671 51626250672 52984836216 55928438228 58079532006 59607940743 64486882512 73363619376 77439376008 79477254324 83892657342 87119298009 105969672432 111856876456 116159064012 119215881486 125838986013 154878752016 158954508648 167785314684 174238596018 223713752912 232318128024 238431762972 251677972026 317909017296 335570629368 348477192036 377516958039 464636256048 476863525944 503355944052 671141258736 696954384072 755033916078 953727051888 1006711888104 1132550874117 1393908768144 1510067832156 2013423776208 2265101748234 3020135664312 4530203496468 6040271328624 9060406992936 18120813985872
• Sum of all divisors σ(n): 59665843849920
• Sum of proper divisors (its aliquot sum) s(n): 41545029864048
• 18120813985872 is an abundant number, because the sum of its proper divisors (41545029864048) is greater than itself. Its abundance is 23424215878176

Bases of 18120813985872

• Binary: 100000111101100010100101011100100000001010000₂
• Hexadecimal: 0x107B14AE4050
• Base-36: 6F8L4S500

Squares and roots of 18120813985872

• 18120813985872 squared (18120813985872²) is 328363899510574279815600384
• 18120813985872 cubed (18120813985872³) is 5950221142706682385437055431557773774848
• The square root of 18120813985872 is 4256854.9406659373
• The cube root of 18120813985872 is 26265.9169913125

Scales and comparisons

• 18,120,813,985,872 seconds is equal to 576,185 years, 43 weeks, 2 days, 8 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,120,813,985,872 would take you about one million, four hundred forty thousand, four hundred sixty-four 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 18120813985872 cubic inches would be around 2188.8 feet tall.

Recreational maths with 18120813985872

• 18120813985872 backwards is 27858931802181
• The number of decimal digits it has is: 14
• The sum of 18120813985872's digits is 63
• More coming soon!