21388409637840
21,388,409,637,840 is an even composite number composed of five prime numbers multiplied together.
21388409637840 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21388409637840:
24 × 33 × 5 × 7 × 1414577357
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 1414577357)See below for interesting mathematical facts about the number 21388409637840 from the Numbermatics database.
Names of 21388409637840
- Cardinal: 21388409637840 can be written as Twenty-one trillion, three hundred eighty-eight billion, four hundred nine million, six hundred thirty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.138840963784 × 1013
Factors of 21388409637840
- Number of distinct prime factors ω(n): 5
- Total number of prime factors Ω(n): 10
- Sum of prime factors: 1414577374
Divisors of 21388409637840
- Number of divisors d(n): 160
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1008 1080 1260 1512 1680 1890 2160 2520 3024 3780 5040 7560 15120 1414577357 2829154714 4243732071 5658309428 7072886785 8487464142 9902041499 11316618856 12731196213 14145773570 16974928284 19804082998 21218660355 22633237712 25462392426 28291547140 29706124497 33949856568 38193588639 39608165996 42437320710 49510207495 50924784852 56583094280 59412248994 63655981065 67899713136 76387177278 79216331992 84874641420 89118373491 99020414990 101849569704 113166188560 118824497988 127311962130 148530622485 152774354556 158432663984 169749282840 178236746982 190967943195 198040829980 203699139408 237648995976 254623924260 267355120473 297061244970 305548709112 339498565680 356473493964 381935886390 396081659960 445591867455 475297991952 509247848520 534710240946 594122489940 611097418224 712946987928 763871772780 792163319920 891183734910 1018495697040 1069420481892 1188244979880 1336775602365 1425893975856 1527743545560 1782367469820 2138840963784 2376489959760 2673551204730 3055487091120 3564734939640 4277681927568 5347102409460 7129469879280 10694204818920 21388409637840
- Sum of all divisors σ(n): 84195644348160
- Sum of proper divisors (its aliquot sum) s(n): 62807234710320
- 21388409637840 is an abundant number, because the sum of its proper divisors (62807234710320) is greater than itself. Its abundance is 41418825072480
Bases of 21388409637840
- Binary: 1001101110011111000001000111100001011110100002
- Hexadecimal: 0x1373E08F0BD0
- Base-36: 7KXP6V6C0
Squares and roots of 21388409637840
- 21388409637840 squared (213884096378402) is 457464066836046999959865600
- 21388409637840 cubed (213884096378403) is 9784428856081589569068807492231074304000
-
The
square root of 21388409637840 is 4624760.4951867507 -
The
cube root of 21388409637840 is 27758.2978243897
Scales and comparisons
How big is 21388409637840?- 21,388,409,637,840 seconds is equal to 680,085 years, 13 weeks, 6 days, 11 hours, 24 minutes.
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To count from 1 to 21,388,409,637,840 would take you about one million, seven hundred thousand, two hundred thirteen 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 21388409637840 cubic inches would be around 2313.2 feet tall.
Recreational maths with 21388409637840
- 21388409637840 backwards is 04873690488312
- 21388409637840 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21388409637840's digits is 63
- More coming soon!
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