The Number

291

Two Hundred and Ninety-One

In Base 5 Quinary Is

21315

The numbers with a 5 subscript use Base 5 Quinary notation.

For more familiar numbers: See Two Hundred and Ninety-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

288
21235
Two Hundred and Eighty-Eight in Base 5 Quinary
289
21245
Two Hundred and Eighty-Nine in Base 5 Quinary
290
21305
Two Hundred and Ninety in Base 5 Quinary
292
21325
Two Hundred and Ninety-Two in Base 5 Quinary
293
21335
Two Hundred and Ninety-Three in Base 5 Quinary
294
21345
Two Hundred and Ninety-Four in Base 5 Quinary

Scientific Notation

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

2.91e2

Reciprocal

A number multiplied with its reciprocal is one.

0.000203321341102221203113035

The reciprocal of 291 in Base 5 Quinary.

Palindrome?

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

The number 21315 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 5 Quinary

A Composite

Composites have more than just these two factors.

Two hundred and ninety-one is a composite number with 4 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 two hundred and ninety-one has the following 2 prime factors:

3
35
Three in Base 5 Quinary
97
3425
Ninety-Seven in Base 5 Quinary

Prime Factorization

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

351 · 34251 = 21315

Base Conversions

The number two hundred and ninety-one in 35 different bases