18618794217972

Names of 18618794217972

• Cardinal: 18618794217972 can be written as Eighteen trillion, six hundred eighteen billion, seven hundred ninety-four million, two hundred seventeen thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.8618794217972 × 10¹³

Factors of 18618794217972

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 12039

Divisors of 18618794217972

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 19 26 27 36 38 39 52 54 57 76 78 79 81 108 114 117 156 158 162 169 171 228 234 237 247 316 324 338 342 351 361 468 474 494 507 513 676 684 702 711 722 741 948 988 1014 1026 1027 1053 1083 1404 1422 1444 1482 1501 1521 1539 2028 2052 2054 2106 2133 2166 2223 2844 2964 3002 3042 3078 3081 3211 3249 4108 4212 4266 4332 4446 4503 4563 4693 6004 6084 6156 6162 6399 6422 6498 6669 8532 8892 9006 9126 9243 9386 9633 9747 11923 12324 12798 12844 12996 13338 13351 13509 13689 14079 18012 18252 18486 18772 19266 19494 19513 20007 23846 25596 26676 26702 27018 27378 27729 28158 28519 28899 29241 35769 36972 38532 38988 39026 40014 40053 40527 42237 47692 53404 54036 54756 55458 56316 57038 57798 58482 58539 61009 71538 78052 80028 80106 81054 83187 84474 85557 86697 107307 110916 114076 115596 116964 117078 120159 121581 122018 126711 143076 154999 160212 162108 166374 168948 171114 173394 175617 183027 214614 226537 234156 240318 243162 244036 253422 253669 256671 260091 309998 321921 332748 342228 346788 351234 360477 366054 370747 380133 429228 453074 464997 480636 486324 506844 507338 513342 520182 526851 549081 619996 643842 679611 702468 720954 732108 741494 760266 761007 770013 906148 929994 941917 965763 1014676 1026684 1040364 1053702 1081431 1098162 1112241 1287684 1359222 1394991 1441908 1482988 1520532 1522014 1540026 1580553 1647243 1859988 1883834 1931526 2014987 2038833 2107404 2162862 2196324 2224482 2283021 2310039 2718444 2789982 2825751 2944981 3044028 3080052 3161106 3294486 3336723 3767668 3863052 4029974 4077666 4184973 4304203 4325724 4448964 4566042 4620078 4819711 4941729 5579964 5651502 5889962 6044961 6116499 6322212 6588972 6673446 6849063 8059948 8155332 8369946 8477253 8608406 8834943 9132084 9240156 9639422 9883458 10010169 11303004 11779924 12089922 12232998 12244921 12554919 12912609 13346892 13698126 14459133 16739892 16954506 17216812 17669886 17896423 18134883 18349497 19278844 19766916 20020338 20547189 24179844 24465996 24489842 25109838 25431759 25825218 26504829 27396252 28918266 30030507 33909012 35339772 35792846 36269766 36698994 36734763 38284753 38737827 40040676 41094378 43377399 48979684 50219676 50863518 51650436 53009658 53689269 54404649 55954639 57836532 60061014 71585692 72539532 73397988 73469526 76295277 76569506 77475654 79514487 82188756 86754798 101727036 106019316 107378538 108809298 110204289 111909278 114854259 116213481 120122028 130132197 146939052 152590554 153139012 154951308 159028974 159183973 161067807 163213947 167863917 173509596 214757076 217618596 220408578 223818556 229708518 232426962 232653499 238543461 260264394 305181108 318057948 318367946 322135614 326427894 330612867 335727834 340032037 344562777 348640443 390396591 440817156 459417036 464853924 465306998 477086922 477551919 483203421 503591751 520528788 636735892 644271228 652855788 661225734 671455668 680064074 689125554 697280886 697960497 727410307 780793182 930613996 954173844 955103838 966406842 991838601 1007183502 1020096111 1033688331 1322451468 1360128148 1378251108 1394561772 1395920994 1432655757 1449610263 1454820614 1510775253 1561586364 1910207676 1932813684 1983677202 2014367004 2040192222 2067376662 2093881491 2182230921 2791841988 2865311514 2899220526 2909641228 3021550506 3024495487 3060288333 3101064993 3967354404 4080384444 4134753324 4187762982 4297967271 4364461842 4420416481 4532325759 5730623028 5798441052 6043101012 6048990974 6120576666 6202129986 6281644473 6546692763 8375525964 8595934542 8728923684 8840832962 9064651518 9073486461 9180864999 12097981948 12241153332 12404259972 12563288946 12893901813 13093385526 13261249443 17191869084 17681665924 18129303036 18146972922 18361729998 18844933419 19640078289 25126577892 25787803626 26186771052 26522498886 27220459383 27542594997 36293945844 36723459996 37689866838 39280156578 39783748329 51575607252 53044997772 54440918766 55085189994 57465414253 58920234867 75379733676 78560313156 79567496658 81661378149 108881837532 110170379988 114930828506 117840469734 119351244987 159134993316 163322756298 172396242759 229861657012 235680939468 238702489974 244984134447 326645512596 344792485518 358053734961 477404979948 489968268894 517188728277 689584971036 716107469922 979936537788 1034377456554 1432214939844 1551566184831 2068754913108 3103132369662 4654698554493 6206264739324 9309397108986 18618794217972
• Sum of all divisors σ(n): 56334109043520
• Sum of proper divisors (its aliquot sum) s(n): 37715314825548
• 18618794217972 is an abundant number, because the sum of its proper divisors (37715314825548) is greater than itself. Its abundance is 19096520607576

Bases of 18618794217972

• Binary: 100001110111100000110100111011001000111110100₂
• Hexadecimal: 0x10EF069D91F4
• Base-36: 6LLCTCR90

Squares and roots of 18618794217972

• 18618794217972 squared (18618794217972²) is 346659498131187579047792784
• 18618794217972 cubed (18618794217972³) is 6454381859410030636300788980187984714048
• The square root of 18618794217972 is 4314950.0829061743
• The cube root of 18618794217972 is 26504.3515901037

Scales and comparisons

• 18,618,794,217,972 seconds is equal to 592,020 years, 3 weeks, 2 days, 10 hours, 46 minutes, 12 seconds.
• To count from 1 to 18,618,794,217,972 would take you about one million, four hundred eighty thousand and fifty 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 18618794217972 cubic inches would be around 2208.7 feet tall.

Recreational maths with 18618794217972

• 18618794217972 backwards is 27971249781681
• The number of decimal digits it has is: 14
• The sum of 18618794217972's digits is 72
• More coming soon!