The Number

1205

One Thousand Two Hundred and Five

In Base 21 Unovigesimal Is

2f821

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1202
2f521
One Thousand Two Hundred and Two in Base 21 Unovigesimal
1203
2f621
One Thousand Two Hundred and Three in Base 21 Unovigesimal
1204
2f721
One Thousand Two Hundred and Four in Base 21 Unovigesimal
1206
2f921
One Thousand Two Hundred and Six in Base 21 Unovigesimal
1207
2fa21
One Thousand Two Hundred and Seven in Base 21 Unovigesimal
1208
2fb21
One Thousand Two Hundred and Eight in Base 21 Unovigesimal

Scientific Notation

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

1.205e3

Reciprocal

A number multiplied with its reciprocal is one.

0.007e86460d3e4dg21

The reciprocal of 1205 in Base 21 Unovigesimal.

Palindrome?

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

The number 2f821 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 five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and five 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 one thousand two hundred and five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
241
ba21
Two Hundred and Forty-One in Base 21 Unovigesimal

Prime Factorization

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

5211 · ba211 = 2f821

Base Conversions

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