The Number

2105

Two Thousand One Hundred and Five

Nearby Numbers

Positive, nonzero integers within three units

2102
Two Thousand One Hundred and Two
2103
Two Thousand One Hundred and Three
2104
Two Thousand One Hundred and Four
2106
Two Thousand One Hundred and Six
2107
Two Thousand One Hundred and Seven
2108
Two Thousand One Hundred and Eight

Scientific Notation

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

2.105e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00047505938242280285

The reciprocal of 2105.

Palindrome?

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

The number 2105 is not a palindrome.

Not A Prime Number

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

Two thousand one hundred and five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Two thousand one hundred and five is a composite number with 4 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number two thousand one hundred and five has the following 2 prime factors:

5
Five
421
Four Hundred and Twenty-One

Prime Factorization

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

51 · 4211 = 2105

Base Conversions

The number two thousand one hundred and five in 35 different bases