21621652479680

Names of 21621652479680

• Cardinal: 21621652479680 can be written as Twenty-one trillion, six hundred twenty-one billion, six hundred fifty-two million, four hundred seventy-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.162165247968 × 10¹³

Factors of 21621652479680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19237

Divisors of 21621652479680

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 67 80 88 110 134 160 176 220 268 320 335 352 440 536 670 704 737 880 1072 1340 1474 1760 2144 2680 2948 3520 3685 4288 5360 5896 7370 9433 9719 10720 11792 14740 18866 19438 21440 23584 29480 37732 38876 47165 47168 48595 58960 75464 77752 94330 97190 103763 106909 117920 150928 155504 188660 194380 207526 213818 235840 301856 311008 377320 388760 415052 427636 518815 534545 603712 622016 632011 651173 754640 777520 830104 855272 1037630 1069090 1264022 1302346 1509280 1555040 1660208 1710544 2075260 2138180 2528044 2604692 3018560 3110080 3160055 3255865 3320416 3421088 4150520 4276360 5056088 5209384 6320110 6511730 6640832 6842176 6952121 7162903 8301040 8552720 10112176 10418768 12640220 13023460 13904242 14325806 16602080 17105440 20224352 20837536 25280440 26046920 27808484 28651612 33204160 34210880 34760605 35814515 40448704 41675072 50560880 52093840 55616968 57303224 69521210 71629030 91679327 101121760 104187680 111233936 114606448 139042420 143258060 183358654 202243520 208375360 222467872 229212896 278084840 286516120 366717308 444935744 458396635 458425792 556169680 573032240 733434616 916793270 1008472597 1112339360 1146064480 1466869232 1833586540 2016945194 2224678720 2292128960 2933738464 3667173080 4033890388 5042362985 5867476928 6142514909 7334346160 8067780776 10084725970 12285029818 14668692320 16135561552 20169451940 24570059636 29337384640 30712574545 32271123104 40338903880 49140119272 61425149090 64542246208 67567663999 80677807760 98280238544 122850298180 135135327998 161355615520 196560477088 245700596360 270270655996 322711231040 337838319995 393120954176 491401192720 540541311992 675676639990 982802385440 1081082623984 1351353279980 1965604770880 2162165247968 2702706559960 4324330495936 5405413119920 10810826239840 21621652479680
• Sum of all divisors σ(n): 57017381276160
• Sum of proper divisors (its aliquot sum) s(n): 35395728796480
• 21621652479680 is an abundant number, because the sum of its proper divisors (35395728796480) is greater than itself. Its abundance is 13774076316800

Bases of 21621652479680

• Binary: 100111010101000101110111010100101111011000000₂
• Hexadecimal: 0x13AA2EEA5EC0
• Base-36: 7NWULMQWW

Squares and roots of 21621652479680

• 21621652479680 squared (21621652479680²) is 467495855952052292812902400
• 21621652479680 cubed (21621652479680³) is 10108032933085815544083120619257823232000
• The square root of 21621652479680 is 4649908.8678897783
• The cube root of 21621652479680 is 27858.8356261733

Scales and comparisons

• 21,621,652,479,680 seconds is equal to 687,501 years, 34 weeks, 5 days, 9 hours, 41 minutes, 20 seconds.
• To count from 1 to 21,621,652,479,680 would take you about one million, seven hundred eighteen thousand, seven hundred fifty-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 21621652479680 cubic inches would be around 2321.6 feet tall.

Recreational maths with 21621652479680

• 21621652479680 backwards is 08697425612612
• The number of decimal digits it has is: 14
• The sum of 21621652479680's digits is 59
• More coming soon!