The Number

1309

One Thousand Three Hundred and Nine

In Base 21 Unovigesimal Is

2k721

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

For more familiar numbers: See One Thousand Three Hundred and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1306
2k421
One Thousand Three Hundred and Six in Base 21 Unovigesimal
1307
2k521
One Thousand Three Hundred and Seven in Base 21 Unovigesimal
1308
2k621
One Thousand Three Hundred and Eight in Base 21 Unovigesimal
1310
2k821
One Thousand Three Hundred and Ten in Base 21 Unovigesimal
1311
2k921
One Thousand Three Hundred and Eleven in Base 21 Unovigesimal
1312
2ka21
One Thousand Three Hundred and Twelve in Base 21 Unovigesimal

Scientific Notation

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

1.309e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0071c071c071c21

The reciprocal of 1309 in Base 21 Unovigesimal.

Palindrome?

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

The number 2k721 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 three hundred and nine is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One thousand three hundred and nine is a composite number with 8 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 three hundred and nine has the following 3 prime factors:

7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal

Prime Factorization

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

7211 · b211 · h211 = 2k721

Base Conversions

The number one thousand three hundred and nine in 35 different bases