21078438004
21,078,438,004 is an even composite number composed of five prime numbers multiplied together.
What does the number 21078438004 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
21078438004 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21078438004:
22 × 13 × 41 × 612 × 2657
(2 × 2 × 13 × 41 × 61 × 61 × 2657)See below for interesting mathematical facts about the number 21078438004 from the Numbermatics database.
Names of 21078438004
- Cardinal: 21078438004 can be written as Twenty-one billion, seventy-eight million, four hundred thirty-eight thousand and four.
Scientific notation
- Scientific notation: 2.1078438004 × 1010
Factors of 21078438004
Divisors of 21078438004
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 13 26 41 52 61 82 122 164 244 533 793 1066 1586 2132 2501 2657 3172 3721 5002 5314 7442 10004 10628 14884 32513 34541 48373 65026 69082 96746 108937 130052 138164 152561 162077 193492 217874 305122 324154 435748 610244 648308 1416181 1983293 2107001 2832362 3966586 4214002 5664724 6645157 7933172 8428004 9886697 13290314 19773394 26580628 39546788 86387041 128527061 172774082 257054122 345548164 405354577 514108244 810709154 1621418308 5269609501 10539219002 21078438004
- Sum of all divisors σ(n): 41387260824
- Sum of proper divisors (its aliquot sum) s(n): 20308822820
- 21078438004 is a deficient number, because the sum of its proper divisors (20308822820) is less than itself. Its deficiency is 769615184
Bases of 21078438004
- Binary: 100111010000101111101110000011101002
- Hexadecimal: 0x4E85F7074
- Base-36: 9OLK2US
Squares and roots of 21078438004
- 21078438004 squared (210784380042) is 444300548688471504016
- 21078438004 cubed (210784380043) is 9365161570673130106921893024064
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The
square root of 21078438004 is 145184.1520414677 -
The
cube root of 21078438004 is 2762.3549006567
Scales and comparisons
How big is 21078438004?- 21,078,438,004 seconds is equal to 670 years, 11 weeks, 6 days, 9 hours, 40 minutes, 4 seconds.
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To count from 1 to 21,078,438,004 would take you about one thousand, three hundred forty 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 21078438004 cubic inches would be around 230.2 feet tall.
Recreational maths with 21078438004
- 21078438004 backwards is 40083487012
- The number of decimal digits it has is: 11
- The sum of 21078438004's digits is 37
- More coming soon!
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