# 21454400

## 21,454,400 is an even composite number composed of five prime numbers multiplied together.

What does the number 21454400 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 168 divisors.

21454400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.

## Prime factorization of 21454400:

### 26 × 52 × 11 × 23 × 53

(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 11 × 23 × 53)

See below for interesting mathematical facts about the number 21454400 from the Numbermatics database.

### Names of 21454400

• Cardinal: 21454400 can be written as Twenty-one million, four hundred fifty-four thousand, four hundred.

### Scientific notation

• Scientific notation: 2.14544 × 107

### Factors of 21454400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 94

### Divisors of 21454400

• Number of divisors d(n): 168
• Complete list of divisors:
• Sum of all divisors σ(n): 61228224
• Sum of proper divisors (its aliquot sum) s(n): 39773824
• 21454400 is an abundant number, because the sum of its proper divisors (39773824) is greater than itself. Its abundance is 18319424

### Bases of 21454400

• Binary: 10100011101011110010000002
• Base-36: CRUBK

### Squares and roots of 21454400

• 21454400 squared (214544002) is 460291279360000
• 21454400 cubed (214544003) is 9875273223901184000000
• The square root of 21454400 is 4631.8894632751
• The cube root of 21454400 is 277.8681637711

### Scales and comparisons

How big is 21454400?
• 21,454,400 seconds is equal to 35 weeks, 3 days, 7 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,454,400 would take you about eleven 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 21454400 cubic inches would be around 23.2 feet tall.

### Recreational maths with 21454400

• 21454400 backwards is 00445412
• 21454400 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21454400's digits is 20
• More coming soon!