The Number

21491

Twenty-One Thousand Four Hundred and Ninety-One

In Base 25 Pentavigesimal Is

199g25

The numbers with a 25 subscript use Base 25 Pentavigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21488
199d25
Twenty-One Thousand Four Hundred and Eighty-Eight in Base 25 Pentavigesimal
21489
199e25
Twenty-One Thousand Four Hundred and Eighty-Nine in Base 25 Pentavigesimal
21490
199f25
Twenty-One Thousand Four Hundred and Ninety in Base 25 Pentavigesimal
21492
199h25
Twenty-One Thousand Four Hundred and Ninety-Two in Base 25 Pentavigesimal
21493
199i25
Twenty-One Thousand Four Hundred and Ninety-Three in Base 25 Pentavigesimal
21494
199j25
Twenty-One Thousand Four Hundred and Ninety-Four in Base 25 Pentavigesimal

Scientific Notation

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

2.1491e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000i4a387ol6nb25

The reciprocal of 21491 in Base 25 Pentavigesimal.

Palindrome?

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

The number 199g25 is not a palindrome.

A Prime Number

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

Twenty-one thousand four hundred and ninety-one is the 2410th prime number.   See primes in Base 25 Pentavigesimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand Four Hundred and Ninety-One is not a composite number because it has exactly two factors: One and Twenty-One Thousand Four Hundred and Ninety-One

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 four hundred and ninety-one has the following 1 prime factor:

21491
199g25
Twenty-One Thousand Four Hundred and Ninety-One in Base 25 Pentavigesimal

Prime Factorization

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

199g251 = 199g25

Base Conversions

The number twenty-one thousand four hundred and ninety-one in 35 different bases