Nearby Numbers

Positive, nonzero integers within three units

28402

Twenty-Eight Thousand Four Hundred and Two

28403

Twenty-Eight Thousand Four Hundred and Three

28404

Twenty-Eight Thousand Four Hundred and Four

28406

Twenty-Eight Thousand Four Hundred and Six

28407

Twenty-Eight Thousand Four Hundred and Seven

28408

Twenty-Eight Thousand Four Hundred and Eight

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.8405e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00003520506953001232

The reciprocal of 28405.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 28405 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty-eight thousand four hundred and five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand four hundred and five is a composite number with 16 total factors (including 1 and itself).

Prime Factors

5

Five

13

Thirteen

19

Nineteen

23

Twenty-Three

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

51 · 131 · 191 · 231 = 28405

Base Conversions

The number twenty-eight thousand four hundred and five in 35 different bases