21373212
21,373,212 is an even composite number composed of five prime numbers multiplied together.
21373212 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 21373212:
22 × 3 × 72 × 163 × 223
(2 × 2 × 3 × 7 × 7 × 163 × 223)See below for interesting mathematical facts about the number 21373212 from the Numbermatics database.
Names of 21373212
- Cardinal: 21373212 can be written as Twenty-one million, three hundred seventy-three thousand, two hundred twelve.
Scientific notation
- Scientific notation: 2.1373212 × 107
Factors of 21373212
Divisors of 21373212
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 163 196 223 294 326 446 489 588 652 669 892 978 1141 1338 1561 1956 2282 2676 3122 3423 4564 4683 6244 6846 7987 9366 10927 13692 15974 18732 21854 23961 31948 32781 36349 43708 47922 65562 72698 95844 109047 131124 145396 218094 254443 436188 508886 763329 1017772 1526658 1781101 3053316 3562202 5343303 7124404 10686606 21373212
- Sum of all divisors σ(n): 58630656
- Sum of proper divisors (its aliquot sum) s(n): 37257444
- 21373212 is an abundant number, because the sum of its proper divisors (37257444) is greater than itself. Its abundance is 15884232
Bases of 21373212
- Binary: 10100011000100001000111002
- Hexadecimal: 0x146211C
- Base-36: CQ3OC
Squares and roots of 21373212
- 21373212 squared (213732122) is 456814191196944
- 21373212 cubed (213732123) is 9763586553060817864128
-
The
square root of 21373212 is 4623.1171302489 -
The
cube root of 21373212 is 277.5172166899
Scales and comparisons
How big is 21373212?- 21,373,212 seconds is equal to 35 weeks, 2 days, 9 hours, 12 seconds.
-
To count from 1 to 21,373,212 would take you about thirty minutes!
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 21373212 cubic inches would be around 23.1 feet tall.
Recreational maths with 21373212
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