The Number

21142

Twenty-One Thousand One Hundred and Forty-Two

Nearby Numbers

Positive, nonzero integers within three units

21139
Twenty-One Thousand One Hundred and Thirty-Nine
21140
Twenty-One Thousand One Hundred and Forty
21141
Twenty-One Thousand One Hundred and Forty-One
21143
Twenty-One Thousand One Hundred and Forty-Three
21144
Twenty-One Thousand One Hundred and Forty-Four
21145
Twenty-One Thousand One Hundred and Forty-Five

Scientific Notation

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

2.1142e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004729921483303377

The reciprocal of 21142.

Palindrome?

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

The number 21142 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 one hundred and forty-two is a composite number with 12 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 one hundred and forty-two is a composite number with 12 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 one hundred and forty-two has the following 3 prime factors:

2
Two
11
Eleven
31
Thirty-One

Prime Factorization

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

21 · 111 · 312 = 21142

Base Conversions

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