The Number

13145

Thirteen Thousand One Hundred and Forty-Five

In Base 21 Unovigesimal Is

18gk21

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

For more familiar numbers: See Thirteen Thousand One Hundred and Forty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

13142
18gh21
Thirteen Thousand One Hundred and Forty-Two in Base 21 Unovigesimal
13143
18gi21
Thirteen Thousand One Hundred and Forty-Three in Base 21 Unovigesimal
13144
18gj21
Thirteen Thousand One Hundred and Forty-Four in Base 21 Unovigesimal
13146
18h021
Thirteen Thousand One Hundred and Forty-Six in Base 21 Unovigesimal
13147
18h121
Thirteen Thousand One Hundred and Forty-Seven in Base 21 Unovigesimal
13148
18h221
Thirteen Thousand One Hundred and Forty-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.

1.3145e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000eged02bb8j1921

The reciprocal of 13145 in Base 21 Unovigesimal.

Palindrome?

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

The number 18gk21 is not a palindrome.

Not A Prime Number

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

Thirteen thousand one hundred and forty-five 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.

Thirteen thousand one hundred and forty-five 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 thirteen thousand one hundred and forty-five has the following 3 prime factors:

5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
239
b821
Two Hundred and Thirty-Nine 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 · b211 · b8211 = 18gk21

Base Conversions

The number thirteen thousand one hundred and forty-five in 35 different bases