The Number

21142

Twenty-One Thousand One Hundred and Forty-Two

In Base 2 Binary Is

1010010100101102

The numbers with a 2 subscript use Base 2 Binary notation.

For more familiar numbers: See Twenty-One Thousand One Hundred and Forty-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21139
1010010100100112
Twenty-One Thousand One Hundred and Thirty-Nine in Base 2 Binary
21140
1010010100101002
Twenty-One Thousand One Hundred and Forty in Base 2 Binary
21141
1010010100101012
Twenty-One Thousand One Hundred and Forty-One in Base 2 Binary
21143
1010010100101112
Twenty-One Thousand One Hundred and Forty-Three in Base 2 Binary
21144
1010010100110002
Twenty-One Thousand One Hundred and Forty-Four in Base 2 Binary
21145
1010010100110012
Twenty-One Thousand One Hundred and Forty-Five in Base 2 Binary

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.

0.00000000000000110001100110001100100101001011000110001111011111001012

The reciprocal of 21142 in Base 2 Binary.

Palindrome?

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

The number 1010010100101102 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 2 Binary

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
102
Two in Base 2 Binary
11
10112
Eleven in Base 2 Binary
31
111112
Thirty-One in Base 2 Binary

Prime Factorization

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

1021 · 101121 · 1111122 = 1010010100101102

Base Conversions

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