21008965118940
21,008,965,118,940 is an even composite number composed of five prime numbers multiplied together.
What does the number 21008965118940 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 144 divisors.
21008965118940 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21008965118940:
22 × 35 × 5 × 19 × 227517491
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 19 × 227517491)See below for interesting mathematical facts about the number 21008965118940 from the Numbermatics database.
Names of 21008965118940
- Cardinal: 21008965118940 can be written as Twenty-one trillion, eight billion, nine hundred sixty-five million, one hundred eighteen thousand, nine hundred forty.
Scientific notation
- Scientific notation: 2.100896511894 × 1013
Factors of 21008965118940
Divisors of 21008965118940
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 76 81 90 95 108 114 135 162 171 180 190 228 243 270 285 324 342 380 405 486 513 540 570 684 810 855 972 1026 1140 1215 1539 1620 1710 2052 2430 2565 3078 3420 4617 4860 5130 6156 7695 9234 10260 15390 18468 23085 30780 46170 92340 227517491 455034982 682552473 910069964 1137587455 1365104946 2047657419 2275174910 2730209892 3412762365 4095314838 4322832329 4550349820 6142972257 6825524730 8190629676 8645664658 10238287095 12285944514 12968496987 13651049460 17291329316 18428916771 20476574190 21614161645 24571889028 25936993974 30714861285 36857833542 38905490961 40953148380 43228323290 51873987948 55286750313 61429722570 64842484935 73715667084 77810981922 86456646580 92144583855 110573500626 116716472883 122859445140 129684969870 155621963844 184289167710 194527454805 221147001252 233432945766 259369939740 276433751565 350149418649 368578335420 389054909610 466865891532 552867503130 583582364415 700298837298 778109819220 1050448255947 1105735006260 1167164728830 1400597674596 1750747093245 2100896511894 2334329457660 3501494186490 4201793023788 5252241279735 7002988372980 10504482559470 21008965118940
- Sum of all divisors σ(n): 69565748353920
- Sum of proper divisors (its aliquot sum) s(n): 48556783234980
- 21008965118940 is an abundant number, because the sum of its proper divisors (48556783234980) is greater than itself. Its abundance is 27547818116040
Bases of 21008965118940
- Binary: 1001100011011100001111110011100101011110111002
- Hexadecimal: 0x131B87E72BDC
- Base-36: 7G3DVE9R0
Squares and roots of 21008965118940
- 21008965118940 squared (210089651189402) is 441376615368837608346723600
- 21008965118940 cubed (210089651189403) is 9272865916599706036409569113833304984000
-
The
square root of 21008965118940 is 4583553.7652502779 -
The
cube root of 21008965118940 is 27593.1672502361
Scales and comparisons
How big is 21008965118940?- 21,008,965,118,940 seconds is equal to 668,020 years, 5 weeks, 3 days, 12 hours, 9 minutes.
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To count from 1 to 21,008,965,118,940 would take you about one million, six hundred seventy 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 21008965118940 cubic inches would be around 2299.4 feet tall.
Recreational maths with 21008965118940
- 21008965118940 backwards is 04981156980012
- 21008965118940 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21008965118940's digits is 54
- More coming soon!
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