# 1855

## 1,855 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1855 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1855 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1855:

### 5 × 7 × 53

See below for interesting mathematical facts about the number 1855 from the Numbermatics database.

### Names of 1855

• Cardinal: 1855 can be written as One thousand, eight hundred fifty-five.

### Scientific notation

• Scientific notation: 1.855 × 103

### Factors of 1855

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 65

### Divisors of 1855

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 2592
• Sum of proper divisors (its aliquot sum) s(n): 737
• 1855 is a deficient number, because the sum of its proper divisors (737) is less than itself. Its deficiency is 1118

### Bases of 1855

• Binary: 111001111112
• Base-36: 1FJ

### Squares and roots of 1855

• 1855 squared (18552) is 3441025
• 1855 cubed (18553) is 6383101375
• The square root of 1855 is 43.0697109349
• The cube root of 1855 is 12.2870597821

### Scales and comparisons

How big is 1855?
• 1,855 seconds is equal to 30 minutes, 55 seconds.
• To count from 1 to 1,855 would take you about thirty minutes.

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 1855 cubic inches would be around 1 feet tall.

### Recreational maths with 1855

• 1855 backwards is 5581
• The number of decimal digits it has is: 4
• The sum of 1855's digits is 19
• More coming soon!