21378610400
21,378,610,400 is an even composite number composed of five prime numbers multiplied together.
21378610400 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 21378610400:
25 × 52 × 7 × 23 × 165983
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 23 × 165983)See below for interesting mathematical facts about the number 21378610400 from the Numbermatics database.
Names of 21378610400
- Cardinal: 21378610400 can be written as Twenty-one billion, three hundred seventy-eight million, six hundred ten thousand, four hundred.
Scientific notation
- Scientific notation: 2.13786104 × 1010
Factors of 21378610400
Divisors of 21378610400
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 23 25 28 32 35 40 46 50 56 70 80 92 100 112 115 140 160 161 175 184 200 224 230 280 322 350 368 400 460 560 575 644 700 736 800 805 920 1120 1150 1288 1400 1610 1840 2300 2576 2800 3220 3680 4025 4600 5152 5600 6440 8050 9200 12880 16100 18400 25760 32200 64400 128800 165983 331966 663932 829915 1161881 1327864 1659830 2323762 2655728 3319660 3817609 4149575 4647524 5311456 5809405 6639320 7635218 8299150 9295048 11618810 13278640 15270436 16598300 18590096 19088045 23237620 26557280 26723263 29047025 30540872 33196600 37180192 38176090 46475240 53446526 58094050 61081744 66393200 76352180 92950480 95440225 106893052 116188100 122163488 132786400 133616315 152704360 185900960 190880450 213786104 232376200 267232630 305408720 381760900 427572208 464752400 534465260 610817440 668081575 763521800 855144416 929504800 1068930520 1336163150 1527043600 2137861040 2672326300 3054087200 4275722080 5344652600 10689305200 21378610400
- Sum of all divisors σ(n): 62240016384
- Sum of proper divisors (its aliquot sum) s(n): 40861405984
- 21378610400 is an abundant number, because the sum of its proper divisors (40861405984) is greater than itself. Its abundance is 19482795584
Bases of 21378610400
- Binary: 100111110100100001110110100111000002
- Hexadecimal: 0x4FA43B4E0
- Base-36: 9TK9TCW
Squares and roots of 21378610400
- 21378610400 squared (213786104002) is 457044982634988160000
- 21378610400 cubed (213786104003) is 9770986619028177281252864000000
-
The
square root of 21378610400 is 146214.2619582645 -
The
cube root of 21378610400 is 2775.4057962417
Scales and comparisons
How big is 21378610400?- 21,378,610,400 seconds is equal to 679 years, 40 weeks, 1 day, 14 hours, 53 minutes, 20 seconds.
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To count from 1 to 21,378,610,400 would take you about one thousand, three hundred fifty-nine 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 21378610400 cubic inches would be around 231.3 feet tall.
Recreational maths with 21378610400
- 21378610400 backwards is 00401687312
- 21378610400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21378610400's digits is 32
- More coming soon!
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