# 872989

## 872,989 is an odd composite number composed of two prime numbers multiplied together.

What does the number 872989 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

872989 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 872989:

### 13 × 67153

See below for interesting mathematical facts about the number 872989 from the Numbermatics database.

### Names of 872989

• Cardinal: 872989 can be written as Eight hundred seventy-two thousand, nine hundred eighty-nine.

### Scientific notation

• Scientific notation: 8.72989 × 105

### Factors of 872989

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 67166

### Divisors of 872989

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 940156
• Sum of proper divisors (its aliquot sum) s(n): 67167
• 872989 is a deficient number, because the sum of its proper divisors (67167) is less than itself. Its deficiency is 805822

### Bases of 872989

• Binary: 110101010010000111012
• Base-36: IPLP

### Squares and roots of 872989

• 872989 squared (8729892) is 762109794121
• 872989 cubed (8729893) is 665313467059897669
• The square root of 872989 is 934.3388036469
• The cube root of 872989 is 95.5732285581

### Scales and comparisons

How big is 872989?
• 872,989 seconds is equal to 1 week, 3 days, 2 hours, 29 minutes, 49 seconds.
• To count from 1 to 872,989 would take you about three days!

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 872989 cubic inches would be around 8 feet tall.

### Recreational maths with 872989

• 872989 backwards is 989278
• The number of decimal digits it has is: 6
• The sum of 872989's digits is 43
• More coming soon!