The Number

1290

One Thousand Two Hundred and Ninety

In Base 25 Pentavigesimal Is

21f25

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

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

Nearby Numbers

Positive, nonzero integers within three units

1287
21c25
One Thousand Two Hundred and Eighty-Seven in Base 25 Pentavigesimal
1288
21d25
One Thousand Two Hundred and Eighty-Eight in Base 25 Pentavigesimal
1289
21e25
One Thousand Two Hundred and Eighty-Nine in Base 25 Pentavigesimal
1291
21g25
One Thousand Two Hundred and Ninety-One in Base 25 Pentavigesimal
1292
21h25
One Thousand Two Hundred and Ninety-Two in Base 25 Pentavigesimal
1293
21i25
One Thousand Two Hundred and Ninety-Three in Base 25 Pentavigesimal

Scientific Notation

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

1.290e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00c2k67bd6lomd25

The reciprocal of 1290 in Base 25 Pentavigesimal.

Palindrome?

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

The number 21f25 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 two hundred and ninety is a composite number with 16 total factors (including 1 and itself).   See primes in Base 25 Pentavigesimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and ninety is a composite number with 16 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 two hundred and ninety has the following 4 prime factors:

2
225
Two in Base 25 Pentavigesimal
3
325
Three in Base 25 Pentavigesimal
5
525
Five in Base 25 Pentavigesimal
43
1i25
Forty-Three 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 · 3251 · 5251 · 1i251 = 21f25

Base Conversions

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