# 1273747728

## 1,273,747,728 is an even composite number composed of six prime numbers multiplied together.

What does the number 1273747728 look like?

This visualization shows the relationship between its 6 prime factors (large circles) and 160 divisors.

1273747728 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.

## Prime factorization of 1273747728:

### 24 × 3 × 11 × 23 × 53 × 1979

(2 × 2 × 2 × 2 × 3 × 11 × 23 × 53 × 1979)

See below for interesting mathematical facts about the number 1273747728 from the Numbermatics database.

### Names of 1273747728

• Cardinal: 1273747728 can be written as One billion, two hundred seventy-three million, seven hundred forty-seven thousand, seven hundred twenty-eight.

### Scientific notation

• Scientific notation: 1.273747728 × 109

### Factors of 1273747728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2071

### Divisors of 1273747728

• Number of divisors d(n): 160
• Complete list of divisors:
• Sum of all divisors σ(n): 3818327040
• Sum of proper divisors (its aliquot sum) s(n): 2544579312
• 1273747728 is an abundant number, because the sum of its proper divisors (2544579312) is greater than itself. Its abundance is 1270831584

### Bases of 1273747728

• Binary: 10010111110101111011001000100002
• Base-36: L2CU1C

### Squares and roots of 1273747728

• 1273747728 squared (12737477282) is 1622433274585161984
• 1273747728 cubed (12737477283) is 2066570697334450219631972352
• The square root of 1273747728 is 35689.6025195013
• The cube root of 1273747728 is 1083.9963190281

### Scales and comparisons

How big is 1273747728?
• 1,273,747,728 seconds is equal to 40 years, 26 weeks, 10 hours, 48 minutes, 48 seconds.
• To count from 1 to 1,273,747,728 would take you about eighty-one years!

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 1273747728 cubic inches would be around 90.3 feet tall.

### Recreational maths with 1273747728

• 1273747728 backwards is 8277473721
• 1273747728 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1273747728's digits is 48
• More coming soon!