The Number

1638

One Thousand Six Hundred and Thirty-Eight

In Base 25 Pentavigesimal Is

2fd25

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

For more familiar numbers: See One Thousand Six Hundred and Thirty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1635
2fa25
One Thousand Six Hundred and Thirty-Five in Base 25 Pentavigesimal
1636
2fb25
One Thousand Six Hundred and Thirty-Six in Base 25 Pentavigesimal
1637
2fc25
One Thousand Six Hundred and Thirty-Seven in Base 25 Pentavigesimal
1639
2fe25
One Thousand Six Hundred and Thirty-Nine in Base 25 Pentavigesimal
1640
2ff25
One Thousand Six Hundred and Forty in Base 25 Pentavigesimal
1641
2fg25
One Thousand Six Hundred and Forty-One in Base 25 Pentavigesimal

Scientific Notation

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

1.638e3

Reciprocal

A number multiplied with its reciprocal is one.

0.009dbn009dbn25

The reciprocal of 1638 in Base 25 Pentavigesimal.

Palindrome?

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

The number 2fd25 is not a palindrome.

Not A Prime Number

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

One thousand six hundred and thirty-eight is a composite number with 24 total factors (including 1 and itself).   See primes in Base 25 Pentavigesimal

A Composite

Composites have more than just these two factors.

One thousand six hundred and thirty-eight is a composite number with 24 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 one thousand six hundred and thirty-eight has the following 4 prime factors:

2
225
Two in Base 25 Pentavigesimal
3
325
Three in Base 25 Pentavigesimal
7
725
Seven in Base 25 Pentavigesimal
13
d25
Thirteen in Base 25 Pentavigesimal

Prime Factorization

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

2251 · 3252 · 7251 · d251 = 2fd25

Base Conversions

The number one thousand six hundred and thirty-eight in 35 different bases