21007808836800

Names of 21007808836800

• Cardinal: 21007808836800 can be written as Twenty-one trillion, seven billion, eight hundred eight million, eight hundred thirty-six thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10078088368 × 10¹³

Factors of 21007808836800

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 4554

Divisors of 21007808836800

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 31 32 40 48 50 60 61 62 64 75 80 93 96 100 120 122 124 150 155 160 183 186 192 200 240 244 248 300 305 310 320 366 372 400 465 480 488 496 600 601 610 620 732 744 775 800 915 930 960 976 992 1200 1202 1220 1240 1464 1488 1525 1550 1600 1803 1830 1860 1891 1952 1984 2325 2400 2404 2440 2480 2928 2976 3005 3050 3100 3606 3660 3720 3782 3851 3904 4575 4650 4800 4808 4880 4960 5673 5856 5952 6010 6100 6200 7212 7320 7440 7564 7702 9015 9150 9300 9455 9616 9760 9920 11346 11553 11712 12020 12200 12400 14424 14640 14880 15025 15128 15404 18030 18300 18600 18631 18910 19232 19255 19520 22692 23106 24040 24400 24800 28365 28848 29280 29760 30050 30256 30808 36060 36600 36661 37200 37262 37820 38464 38510 45075 45384 46212 47275 48080 48800 49600 55893 56730 57696 57765 58560 60100 60512 61616 72120 73200 73322 74400 74524 75640 77020 90150 90768 92424 93155 94550 96160 96275 97600 109983 111786 113460 115392 115530 119381 120200 121024 123232 141825 144240 146400 146644 148800 149048 151280 154040 180300 181536 183305 184848 186310 189100 192320 192550 219966 223572 226920 231060 234911 238762 240400 246464 279465 283650 288480 288825 292800 293288 298096 302560 308080 358143 360600 363072 366610 369696 372620 378200 385100 439932 447144 453840 462120 465775 469822 477524 480800 549915 558930 567300 576960 577650 586576 596192 596905 605120 616160 704733 716286 721200 733220 739392 745240 756400 770200 879864 894288 907680 916525 924240 931550 939644 955048 961600 1099830 1117860 1134600 1136491 1155300 1173152 1174555 1192384 1193810 1232320 1397325 1409466 1432572 1442400 1466440 1490480 1512800 1540400 1759728 1788576 1790715 1815360 1833050 1848480 1863100 1879288 1910096 2199660 2235720 2269200 2272982 2310600 2314451 2346304 2349110 2387620 2749575 2794650 2818932 2865144 2884800 2932880 2980960 2984525 3025600 3080800 3409473 3519456 3523665 3577152 3581430 3666100 3696960 3726200 3758576 3820192 4399320 4471440 4538400 4545964 4621200 4628902 4698220 4775240 5499150 5589300 5637864 5682455 5730288 5865760 5872775 5961920 5969050 6161600 6818946 6943353 7038912 7047330 7162860 7282241 7332200 7452400 7517152 7640384 8798640 8942880 8953575 9076800 9091928 9242400 9257804 9396440 9550480 10998300 11178600 11275728 11364910 11460576 11572255 11731520 11745550 11938100 13637892 13886706 14094660 14325720 14564482 14664400 14904800 15034304 17047365 17597280 17618325 17885760 17907150 18183856 18484800 18515608 18792880 19100960 21846723 21996600 22357200 22551456 22729820 22921152 23144510 23491100 23876200 27275784 27773412 28189320 28412275 28651440 29128964 29328800 29809600 34094730 34716765 35194560 35236650 35814300 36367712 36411205 37031216 37585760 38201920 43693446 43993200 44714400 45102912 45459640 46289020 46982200 47752400 54551568 55546824 56378640 56824550 57302880 57861275 58257928 58657600 68189460 69433530 70473300 71628600 71747981 72735424 72822410 74062432 75171520 85236825 87386892 87986400 89428800 90919280 92578040 93964400 95504800 109103136 109233615 111093648 112757280 113649100 114605760 115722550 116515856 136378920 138867060 140946600 141181511 143257200 143495962 145644820 148124864 170473650 173583825 174773784 175972800 181838560 182056025 185156080 187928800 191009600 215243943 218206272 218467230 222187296 225514560 227298200 231445100 233031712 272757840 277734120 281893200 282363022 286514400 286991924 291289640 340947300 347167650 349547568 358739905 363677120 364112050 370312160 375857600 423544533 430487886 436934460 444374592 454596400 462890200 466063424 545515680 546168075 555468240 563786400 564726044 573028800 573983848 582579280 681894600 694335300 699095136 705907555 717479810 728224100 740624320 847089066 860975772 873868920 909192800 925780400 1076219715 1091031360 1092336150 1110936480 1127572800 1129452088 1147967696 1165158560 1363789200 1388670600 1398190272 1411815110 1434959620 1456448200 1694178132 1721951544 1747737840 1793699525 1818385600 1851560800 2117722665 2152439430 2184672300 2221872960 2258904176 2295935392 2330317120 2727578400 2777341200 2823630220 2869919240 2912896400 3388356264 3443903088 3495475680 3529537775 3587399050 3703121600 4235445330 4304878860 4369344600 4376626841 4517808352 4591870784 5381098575 5455156800 5554682400 5647260440 5739838480 5825792800 6776712528 6887806176 6990951360 7059075550 7174798100 8470890660 8609757720 8738689200 8753253682 9035616704 10588613325 10762197150 11109364800 11294520880 11479676960 11651585600 13129880523 13553425056 13775612352 14118151100 14349596200 16941781320 17219515440 17477378400 17506507364 21177226650 21524394300 21883134205 22589041760 22959353920 26259761046 27106850112 28236302200 28699192400 33883562640 34439030880 34954756800 35013014728 42354453300 43048788600 43766268410 45178083520 52519522092 56472604400 57398384800 65649402615 67767125280 68878061760 70026029456 84708906600 86097577200 87532536820 105039044184 109415671025 112945208800 114796769600 131298805230 135534250560 140052058912 169417813200 172195154400 175065073640 210078088368 218831342050 225890417600 262597610460 280104117824 328247013075 338835626400 344390308800 350130147280 420156176736 437662684100 525195220920 656494026150 677671252800 700260294560 840312353472 875325368200 1050390441840 1312988052300 1400520589120 1750650736400 2100780883680 2625976104600 3501301472800 4201561767360 5251952209200 7002602945600 10503904418400 21007808836800
• Sum of all divisors σ(n): 72451910780928
• Sum of proper divisors (its aliquot sum) s(n): 51444101944128
• 21007808836800 is an abundant number, because the sum of its proper divisors (51444101944128) is greater than itself. Its abundance is 30436293107328

Bases of 21007808836800

• Binary: 100110001101101000010111110111011010011000000₂
• Hexadecimal: 0x131B42FBB4C0
• Base-36: 7G2UQZ4QO

Squares and roots of 21007808836800

• 21007808836800 squared (21007808836800²) is 441328032123532169034240000
• 21007808836800 cubed (21007808836800³) is 9271334933172293369866578393772032000000
• The square root of 21007808836800 is 4583427.6297111969
• The cube root of 21007808836800 is 27592.6610207661

Scales and comparisons

• 21,007,808,836,800 seconds is equal to 667,983 years, 17 weeks, 4 days, 14 hours, 40 minutes.
• To count from 1 to 21,007,808,836,800 would take you about one million, six hundred sixty-nine thousand, nine hundred fifty-eight 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 21007808836800 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21007808836800

• 21007808836800 backwards is 00863880870012
• The number of decimal digits it has is: 14
• The sum of 21007808836800's digits is 51
• More coming soon!