The Number

21145

Twenty-One Thousand One Hundred and Forty-Five

In Base 12 Duodecimal Is

102a112

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21142
1029a12
Twenty-One Thousand One Hundred and Forty-Two in Base 12 Duodecimal
21143
1029b12
Twenty-One Thousand One Hundred and Forty-Three in Base 12 Duodecimal
21144
102a012
Twenty-One Thousand One Hundred and Forty-Four in Base 12 Duodecimal
21146
102a212
Twenty-One Thousand One Hundred and Forty-Six in Base 12 Duodecimal
21147
102a312
Twenty-One Thousand One Hundred and Forty-Seven in Base 12 Duodecimal
21148
102a412
Twenty-One Thousand One Hundred and Forty-Eight in Base 12 Duodecimal

Scientific Notation

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

2.1145e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000b926ab254179b8212

The reciprocal of 21145 in Base 12 Duodecimal.

Palindrome?

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

The number 102a112 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand one hundred and forty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and forty-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 twenty-one thousand one hundred and forty-five has the following 2 prime factors:

5
512
Five in Base 12 Duodecimal
4229
254512
Four Thousand Two Hundred and Twenty-Nine in Base 12 Duodecimal

Prime Factorization

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

5121 · 2545121 = 102a112

Base Conversions

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