The Number

81145

Eighty-One Thousand One Hundred and Forty-Five

In Base 21 Unovigesimal Is

8g0121

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

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

Nearby Numbers

Positive, nonzero integers within three units

81142
8fkj21
Eighty-One Thousand One Hundred and Forty-Two in Base 21 Unovigesimal
81143
8fkk21
Eighty-One Thousand One Hundred and Forty-Three in Base 21 Unovigesimal
81144
8g0021
Eighty-One Thousand One Hundred and Forty-Four in Base 21 Unovigesimal
81146
8g0221
Eighty-One Thousand One Hundred and Forty-Six in Base 21 Unovigesimal
81147
8g0321
Eighty-One Thousand One Hundred and Forty-Seven in Base 21 Unovigesimal
81148
8g0421
Eighty-One 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.

8.1145e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000286jja10fd4je21

The reciprocal of 81145 in Base 21 Unovigesimal.

Palindrome?

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

The number 8g0121 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand one hundred and forty-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.

Eighty-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 eighty-one thousand one hundred and forty-five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
16229
1fgh21
Sixteen Thousand Two Hundred and Twenty-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 · 1fgh211 = 8g0121

Base Conversions

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