The Number

81842

Eighty-One Thousand Eight Hundred and Forty-Two

In Base 21 Unovigesimal Is

8hc521

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

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

Nearby Numbers

Positive, nonzero integers within three units

81839
8hc221
Eighty-One Thousand Eight Hundred and Thirty-Nine in Base 21 Unovigesimal
81840
8hc321
Eighty-One Thousand Eight Hundred and Forty in Base 21 Unovigesimal
81841
8hc421
Eighty-One Thousand Eight Hundred and Forty-One in Base 21 Unovigesimal
81843
8hc621
Eighty-One Thousand Eight Hundred and Forty-Three in Base 21 Unovigesimal
81844
8hc721
Eighty-One Thousand Eight Hundred and Forty-Four in Base 21 Unovigesimal
81845
8hc821
Eighty-One Thousand Eight Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

8.1842e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00027ijihkgg87b21

The reciprocal of 81842 in Base 21 Unovigesimal.

Palindrome?

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

The number 8hc521 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 eight hundred and forty-two 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.

Eighty-one thousand eight hundred and forty-two 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 eighty-one thousand eight hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
151
7421
One Hundred and Fifty-One in Base 21 Unovigesimal
271
cj21
Two Hundred and Seventy-One 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 · 74211 · cj211 = 8hc521

Base Conversions

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