The Number

13870

Thirteen Thousand Eight Hundred and Seventy

In Base 21 Unovigesimal Is

1a9a21

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

For more familiar numbers: See Thirteen Thousand Eight Hundred and Seventy in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

13867
1a9721
Thirteen Thousand Eight Hundred and Sixty-Seven in Base 21 Unovigesimal
13868
1a9821
Thirteen Thousand Eight Hundred and Sixty-Eight in Base 21 Unovigesimal
13869
1a9921
Thirteen Thousand Eight Hundred and Sixty-Nine in Base 21 Unovigesimal
13871
1a9b21
Thirteen Thousand Eight Hundred and Seventy-One in Base 21 Unovigesimal
13872
1a9c21
Thirteen Thousand Eight Hundred and Seventy-Two in Base 21 Unovigesimal
13873
1a9d21
Thirteen Thousand Eight Hundred and Seventy-Three in Base 21 Unovigesimal

Scientific Notation

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

1.3870e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000e09bkb3e63fj21

The reciprocal of 13870 in Base 21 Unovigesimal.

Palindrome?

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

The number 1a9a21 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 eight hundred and seventy is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Thirteen thousand eight hundred and seventy 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 thirteen thousand eight hundred and seventy has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
73
3a21
Seventy-Three in Base 21 Unovigesimal

Prime Factorization

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

2211 · 5211 · j211 · 3a211 = 1a9a21

Base Conversions

The number thirteen thousand eight hundred and seventy in 35 different bases