21487705360128

Names of 21487705360128

• Cardinal: 21487705360128 can be written as Twenty-one trillion, four hundred eighty-seven billion, seven hundred five million, three hundred sixty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1487705360128 × 10¹³

Factors of 21487705360128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 35

Divisors of 21487705360128

• Number of divisors d(n): 630
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 27 28 32 36 42 46 48 54 56 63 64 69 72 81 84 92 96 108 112 126 128 138 144 161 162 168 184 189 192 207 216 224 252 256 276 288 322 324 336 368 378 384 414 432 448 483 504 529 552 567 576 621 644 648 672 736 756 768 828 864 896 966 1008 1058 1104 1134 1152 1242 1288 1296 1344 1449 1472 1512 1587 1656 1728 1792 1863 1932 2016 2116 2208 2268 2304 2484 2576 2592 2688 2898 2944 3024 3174 3312 3456 3703 3726 3864 4032 4232 4347 4416 4536 4761 4968 5152 5184 5376 5796 5888 6048 6348 6624 6912 7406 7452 7728 8064 8464 8694 8832 9072 9522 9936 10304 10368 11109 11592 12096 12167 12696 13041 13248 14283 14812 14904 15456 16128 16928 17388 17664 18144 19044 19872 20608 20736 22218 23184 24192 24334 25392 26082 26496 28566 29624 29808 30912 33327 33856 34776 36288 36501 38088 39744 41216 42849 44436 46368 48384 48668 50784 52164 52992 57132 59248 59616 61824 66654 67712 69552 72576 73002 76176 79488 85169 85698 88872 92736 97336 99981 101568 104328 109503 114264 118496 119232 123648 133308 135424 139104 145152 146004 152352 158976 170338 171396 177744 185472 194672 199962 203136 208656 219006 228528 236992 238464 255507 266616 278208 279841 292008 299943 304704 328509 340676 342792 355488 370944 389344 399924 406272 417312 438012 457056 473984 476928 511014 533232 556416 559682 584016 599886 609408 657018 681352 685584 710976 766521 778688 799848 834624 839523 876024 914112 947968 985527 1022028 1066464 1112832 1119364 1168032 1199772 1218816 1314036 1362704 1371168 1421952 1533042 1557376 1599696 1669248 1679046 1752048 1828224 1958887 1971054 2044056 2132928 2238728 2299563 2336064 2399544 2518569 2628072 2725408 2742336 2843904 3066084 3114752 3199392 3338496 3358092 3504096 3656448 3917774 3942108 4088112 4265856 4477456 4599126 4672128 4799088 5037138 5256144 5450816 5484672 5876661 6132168 6398784 6436343 6716184 6898689 7008192 7555707 7835548 7884216 8176224 8531712 8954912 9198252 9344256 9598176 10074276 10512288 10901632 10969344 11753322 12264336 12797568 12872686 13432368 13797378 14016384 15111414 15671096 15768432 16352448 17629983 17909824 18396504 19196352 19309029 20148552 21024576 21803264 22667121 23506644 24528672 25595136 25745372 26864736 27594756 28032768 30222828 31342192 31536864 32704896 35259966 35819648 36793008 38392704 38618058 40297104 42049152 45054401 45334242 47013288 49057344 51490744 52889949 53729472 55189512 57927087 60445656 62684384 63073728 65409792 70519932 71639296 73586016 76785408 77236116 80594208 84098304 90108802 90668484 94026576 98114688 102981488 105779898 107458944 110379024 115854174 120891312 125368768 126147456 135163203 141039864 147172032 148035889 154472232 158669847 161188416 173781261 180217604 181336968 188053152 196229376 205962976 211559796 214917888 220758048 231708348 241782624 250737536 252294912 270326406 282079728 294344064 296071778 308944464 317339694 322376832 347562522 360435208 362673936 376106304 405489609 411925952 423119592 441516096 444107667 463416696 483565248 501475072 521343783 540652812 564159456 588688128 592143556 617888928 634679388 644753664 695125044 720870416 725347872 752212608 810979218 823851904 846239184 883032192 888215334 926833392 967130496 1036251223 1042687566 1081305624 1128318912 1184287112 1216468827 1235777856 1269358776 1332323001 1390250088 1441740832 1450695744 1504425216 1621958436 1647703808 1692478368 1766064384 1776430668 1853666784 1934260992 2072502446 2085375132 2162611248 2256637824 2368574224 2432937654 2471555712 2538717552 2664646002 2780500176 2883481664 2901391488 3108753669 3243916872 3384956736 3552861336 3649406481 3707333568 3996969003 4145004892 4170750264 4325222496 4513275648 4737148448 4865875308 4943111424 5077435104 5329292004 5561000352 5766963328 5802782976 6217507338 6487833744 6769913472 7105722672 7298812962 7414667136 7993938006 8290009784 8341500528 8650444992 9326261007 9474296896 9731750616 10154870208 10658584008 11122000704 11533926656 11990907009 12435014676 12975667488 13539826944 14211445344 14597625924 14829334272 15987876012 16580019568 16683001056 17300889984 18652522014 18948593792 19463501232 20309740416 21317168016 22244001408 23981814018 24870029352 25951334976 27978783021 28422890688 29195251848 31975752024 33160039136 33366002112 34601779968 37305044028 37897187584 38927002464 40619480832 42634336032 44488002816 47963628036 49740058704 51902669952 55957566042 56845781376 58390503696 63951504048 66320078272 66732004224 74610088056 77854004928 83936349063 85268672064 95927256072 99480117408 103805339904 111915132084 113691562752 116781007392 127903008096 132640156544 133464008448 149220176112 155708009856 167872698126 170537344128 191854512144 198960234816 223830264168 233562014784 255806016192 265280313088 298440352224 311416019712 335745396252 341074688256 383709024288 397920469632 447660528336 467124029568 511612032384 596880704448 671490792504 767418048576 795840939264 895321056672 934248059136 1023224064768 1193761408896 1342981585008 1534836097152 1790642113344 2387522817792 2685963170016 3069672194304 3581284226688 5371926340032 7162568453376 10743852680064 21487705360128
• Sum of all divisors σ(n): 76554095327864
• Sum of proper divisors (its aliquot sum) s(n): 55066389967736
• 21487705360128 is an abundant number, because the sum of its proper divisors (55066389967736) is greater than itself. Its abundance is 33578684607608

Bases of 21487705360128

• Binary: 100111000101011111111000010111000011100000000₂
• Hexadecimal: 0x138AFF0B8700
• Base-36: 7M7BCZ400

Squares and roots of 21487705360128

• 21487705360128 squared (21487705360128²) is 461721481643673582172176384
• 21487705360128 cubed (21487705360128³) is 9921335156001006791381865147860256817152
• The square root of 21487705360128 is 4635483.2930480939
• The cube root of 21487705360128 is 27801.1875000085
• Being both a perfect square and a perfect cube, 21487705360128 is also a perfect sixth number.

Scales and comparisons

• 21,487,705,360,128 seconds is equal to 683,242 years, 29 weeks, 2 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,487,705,360,128 would take you about one million, seven hundred eight thousand, one hundred six 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 21487705360128 cubic inches would be around 2316.8 feet tall.

Recreational maths with 21487705360128

• 21487705360128 backwards is 82106350778412
• 21487705360128 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21487705360128's digits is 54
• More coming soon!