# 12680721

## 12,680,721 is an odd composite number composed of two prime numbers multiplied together.

What does the number 12680721 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 9 divisors.

12680721 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.

## Prime factorization of 12680721:

### 32 × 11872

(3 × 3 × 1187 × 1187)

See below for interesting mathematical facts about the number 12680721 from the Numbermatics database.

### Names of 12680721

• Cardinal: 12680721 can be written as Twelve million, six hundred eighty thousand, seven hundred twenty-one.

### Scientific notation

• Scientific notation: 1.2680721 × 107

### Factors of 12680721

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1190

### Divisors of 12680721

• Number of divisors d(n): 9
• Complete list of divisors:
• Sum of all divisors σ(n): 18332041
• Sum of proper divisors (its aliquot sum) s(n): 5651320
• 12680721 is a deficient number, because the sum of its proper divisors (5651320) is less than itself. Its deficiency is 7029401

### Bases of 12680721

• Binary: 1100000101111110000100012
• Base-36: 7JSI9

### Squares and roots of 12680721

• 12680721 squared (126807212) is 160800685079841
• 12680721 cubed (126807213) is 2039068624106326445361
• 12680721 is a perfect square number. Its square root is 3561
• The cube root of 12680721 is 233.1925379625

### Scales and comparisons

How big is 12680721?
• 12,680,721 seconds is equal to 20 weeks, 6 days, 18 hours, 25 minutes, 21 seconds.
• To count from 1 to 12,680,721 would take you about thirty-one weeks!

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 12680721 cubic inches would be around 19.4 feet tall.

### Recreational maths with 12680721

• 12680721 backwards is 12708621
• The number of decimal digits it has is: 8
• The sum of 12680721's digits is 27
• More coming soon!