# 13402921

## 13,402,921 is an odd composite number composed of two prime numbers multiplied together.

What does the number 13402921 look like?

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

13402921 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 13402921:

### 72 × 5232

(7 × 7 × 523 × 523)

See below for interesting mathematical facts about the number 13402921 from the Numbermatics database.

### Names of 13402921

• Cardinal: 13402921 can be written as Thirteen million, four hundred two thousand, nine hundred twenty-one.

### Scientific notation

• Scientific notation: 1.3402921 × 107

### Factors of 13402921

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 530

### Divisors of 13402921

• Number of divisors d(n): 9
• Complete list of divisors:
• Sum of all divisors σ(n): 15621021
• Sum of proper divisors (its aliquot sum) s(n): 2218100
• 13402921 is a deficient number, because the sum of its proper divisors (2218100) is less than itself. Its deficiency is 11184821

### Bases of 13402921

• Binary: 1100110010000011001010012
• Base-36: 7Z9RD

### Squares and roots of 13402921

• 13402921 squared (134029212) is 179638291332241
• 13402921 cubed (134029213) is 2407677827301010875961
• 13402921 is a perfect square number. Its square root is 3661
• The cube root of 13402921 is 237.5380312135

### Scales and comparisons

How big is 13402921?
• 13,402,921 seconds is equal to 22 weeks, 1 day, 3 hours, 2 minutes, 1 second.
• To count from 1 to 13,402,921 would take you about thirty-three 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 13402921 cubic inches would be around 19.8 feet tall.

### Recreational maths with 13402921

• 13402921 backwards is 12920431
• The number of decimal digits it has is: 8
• The sum of 13402921's digits is 22
• More coming soon!