The Number

21357

Twenty-One Thousand Three Hundred and Fifty-Seven

Nearby Numbers

Positive, nonzero integers within three units

21354
Twenty-One Thousand Three Hundred and Fifty-Four
21355
Twenty-One Thousand Three Hundred and Fifty-Five
21356
Twenty-One Thousand Three Hundred and Fifty-Six
21358
Twenty-One Thousand Three Hundred and Fifty-Eight
21359
Twenty-One Thousand Three Hundred and Fifty-Nine
21360
Twenty-One Thousand Three Hundred and Sixty

Scientific Notation

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

2.1357e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000046823055672613196

The reciprocal of 21357.

Palindrome?

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

The number 21357 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 three hundred and fifty-seven 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-one thousand three hundred and fifty-seven is a composite number with 16 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 three hundred and fifty-seven has the following 3 prime factors:

3
Three
7
Seven
113
One Hundred and Thirteen

Prime Factorization

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

33 · 71 · 1131 = 21357

Base Conversions

The number twenty-one thousand three hundred and fifty-seven in 35 different bases