The Number

21358

Twenty-One Thousand Three Hundred and Fifty-Eight

In Base 8 Octal Is

515568

The numbers with a 8 subscript use Base 8 Octal notation.

For more familiar numbers: See Twenty-One Thousand Three Hundred and Fifty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21355
515538
Twenty-One Thousand Three Hundred and Fifty-Five in Base 8 Octal
21356
515548
Twenty-One Thousand Three Hundred and Fifty-Six in Base 8 Octal
21357
515558
Twenty-One Thousand Three Hundred and Fifty-Seven in Base 8 Octal
21359
515578
Twenty-One Thousand Three Hundred and Fifty-Nine in Base 8 Octal
21360
515608
Twenty-One Thousand Three Hundred and Sixty in Base 8 Octal
21361
515618
Twenty-One Thousand Three Hundred and Sixty-One in Base 8 Octal

Scientific Notation

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

2.1358e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001421414116644220328

The reciprocal of 21358 in Base 8 Octal.

Palindrome?

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

The number 515568 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-eight is a composite number with 8 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 three hundred and fifty-eight 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 three hundred and fifty-eight has the following 3 prime factors:

2
28
Two in Base 8 Octal
59
738
Fifty-Nine in Base 8 Octal
181
2658
One Hundred and Eighty-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 · 7381 · 26581 = 515568

Base Conversions

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