21008870400
21,008,870,400 is an even composite number composed of five prime numbers multiplied together.
21008870400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixty-four divisors.
Prime factorization of 21008870400:
210 × 3 × 52 × 7 × 39079
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 × 39079)See below for interesting mathematical facts about the number 21008870400 from the Numbermatics database.
Names of 21008870400
- Cardinal: 21008870400 can be written as Twenty-one billion, eight million, eight hundred seventy thousand, four hundred.
Scientific notation
- Scientific notation: 2.10088704 × 1010
Factors of 21008870400
Divisors of 21008870400
- Number of divisors d(n): 264
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 50 56 60 64 70 75 80 84 96 100 105 112 120 128 140 150 160 168 175 192 200 210 224 240 256 280 300 320 336 350 384 400 420 448 480 512 525 560 600 640 672 700 768 800 840 896 960 1024 1050 1120 1200 1280 1344 1400 1536 1600 1680 1792 1920 2100 2240 2400 2560 2688 2800 3072 3200 3360 3584 3840 4200 4480 4800 5120 5376 5600 6400 6720 7168 7680 8400 8960 9600 10752 11200 12800 13440 15360 16800 17920 19200 21504 22400 25600 26880 33600 35840 38400 39079 44800 53760 67200 76800 78158 89600 107520 117237 134400 156316 179200 195395 234474 268800 273553 312632 390790 468948 537600 547106 586185 625264 781580 820659 937896 976975 1094212 1172370 1250528 1367765 1563160 1641318 1875792 1953950 2188424 2344740 2501056 2735530 2930925 3126320 3282636 3751584 3907900 4103295 4376848 4689480 5002112 5471060 5861850 6252640 6565272 6838825 7503168 7815800 8206590 8753696 9378960 10004224 10942120 11723700 12505280 13130544 13677650 15006336 15631600 16413180 17507392 18757920 20008448 20516475 21884240 23447400 25010560 26261088 27355300 30012672 31263200 32826360 35014784 37515840 40016896 41032950 43768480 46894800 50021120 52522176 54710600 60025344 62526400 65652720 70029568 75031680 82065900 87536960 93789600 100042240 105044352 109421200 120050688 125052800 131305440 140059136 150063360 164131800 175073920 187579200 200084480 210088704 218842400 250105600 262610880 280118272 300126720 328263600 350147840 375158400 420177408 437684800 500211200 525221760 600253440 656527200 700295680 750316800 840354816 875369600 1000422400 1050443520 1313054400 1400591360 1500633600 1750739200 2100887040 2626108800 3001267200 3501478400 4201774080 5252217600 7002956800 10504435200 21008870400
- Sum of all divisors σ(n): 79356785920
- Sum of proper divisors (its aliquot sum) s(n): 58347915520
- 21008870400 is an abundant number, because the sum of its proper divisors (58347915520) is greater than itself. Its abundance is 37339045120
Bases of 21008870400
- Binary: 100111001000011100111101100000000002
- Hexadecimal: 0x4E439EC00
- Base-36: 9NG505C
Squares and roots of 21008870400
- 21008870400 squared (210088704002) is 441372635483996160000
- 21008870400 cubed (210088704003) is 9272740496989716599537664000000
-
The
square root of 21008870400 is 144944.3700182935 -
The
cube root of 21008870400 is 2759.3125782233
Scales and comparisons
How big is 21008870400?- 21,008,870,400 seconds is equal to 668 years, 6 days, 5 hours, 20 minutes.
-
To count from 1 to 21,008,870,400 would take you about one thousand, three hundred thirty-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 21008870400 cubic inches would be around 229.9 feet tall.
Recreational maths with 21008870400
- 21008870400 backwards is 00407880012
- 21008870400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21008870400's digits is 30
- More coming soon!
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