The Number

21245

Twenty-One Thousand Two Hundred and Forty-Five

Nearby Numbers

Positive, nonzero integers within three units

21242
Twenty-One Thousand Two Hundred and Forty-Two
21243
Twenty-One Thousand Two Hundred and Forty-Three
21244
Twenty-One Thousand Two Hundred and Forty-Four
21246
Twenty-One Thousand Two Hundred and Forty-Six
21247
Twenty-One Thousand Two Hundred and Forty-Seven
21248
Twenty-One Thousand Two Hundred and Forty-Eight

Scientific Notation

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

2.1245e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004706989879971758

The reciprocal of 21245.

Palindrome?

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

The number 21245 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand two hundred and forty-five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and forty-five is a composite number with 8 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 twenty-one thousand two hundred and forty-five has the following 3 prime factors:

5
Five
7
Seven
607
Six Hundred and Seven

Prime Factorization

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

51 · 71 · 6071 = 21245

Base Conversions

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