The Number

21142

Twenty-One Thousand One Hundred and Forty-Two

In Base 8 Octal Is

512268

The numbers with a 8 subscript use Base 8 Octal 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
512238
Twenty-One Thousand One Hundred and Thirty-Nine in Base 8 Octal
21140
512248
Twenty-One Thousand One Hundred and Forty in Base 8 Octal
21141
512258
Twenty-One Thousand One Hundred and Forty-One in Base 8 Octal
21143
512278
Twenty-One Thousand One Hundred and Forty-Three in Base 8 Octal
21144
512308
Twenty-One Thousand One Hundred and Forty-Four in Base 8 Octal
21145
512318
Twenty-One Thousand One Hundred and Forty-Five in Base 8 Octal

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.

0.000014314311226143676248

The reciprocal of 21142 in Base 8 Octal.

Palindrome?

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

The number 512268 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 8 Octal

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
28
Two in Base 8 Octal
11
138
Eleven in Base 8 Octal
31
378
Thirty-One in Base 8 Octal

Prime Factorization

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

281 · 1381 · 3782 = 512268

Base Conversions

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