21012708

21,012,708 is an even composite number composed of five prime numbers multiplied together.

What does the number 21012708 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21012708 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21012708:

2² × 3 × 19 × 23 × 4007

(2 × 2 × 3 × 19 × 23 × 4007)

See below for interesting mathematical facts about the number 21012708 from the Numbermatics database.

Names of 21012708

Cardinal: 21012708 can be written as Twenty-one million, twelve thousand, seven hundred eight.

Scientific notation

Scientific notation: 2.1012708 × 10⁷

Factors of 21012708

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 4054

Divisors of 21012708

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 12 19 23 38 46 57 69 76 92 114 138 228 276 437 874 1311 1748 2622 4007 5244 8014 12021 16028 24042 48084 76133 92161 152266 184322 228399 276483 304532 368644 456798 552966 913596 1105932 1751059 3502118 5253177 7004236 10506354 21012708
Sum of all divisors σ(n): 53867520
Sum of proper divisors (its aliquot sum) s(n): 32854812
21012708 is an abundant number, because the sum of its proper divisors (32854812) is greater than itself. Its abundance is 11842104

Bases of 21012708

Binary: 1010000001010000011100100₂
Hexadecimal: 0x140A0E4
Base-36: CIDIC

Squares and roots of 21012708

21012708 squared (21012708²) is 441533897493264
21012708 cubed (21012708³) is 9277822860127888398912
The square root of 21012708 is 4583.9620417277
The cube root of 21012708 is 275.9480578581

Scales and comparisons

How big is 21012708?

21,012,708 seconds is equal to 34 weeks, 5 days, 4 hours, 51 minutes, 48 seconds.
To count from 1 to 21,012,708 would take you about nineteen hours!

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 21012708 cubic inches would be around 23 feet tall.

Recreational maths with 21012708

21012708 backwards is 80721012
The number of decimal digits it has is: 8
The sum of 21012708's digits is 21
More coming soon!

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The information we have on file for 21012708 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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