The Number

81400

Eighty-One Thousand Four Hundred

In Base 18 Octodecimal Is

dh4418

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Eighty-One Thousand Four Hundred in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81397
dh4118
Eighty-One Thousand Three Hundred and Ninety-Seven in Base 18 Octodecimal
81398
dh4218
Eighty-One Thousand Three Hundred and Ninety-Eight in Base 18 Octodecimal
81399
dh4318
Eighty-One Thousand Three Hundred and Ninety-Nine in Base 18 Octodecimal
81401
dh4518
Eighty-One Thousand Four Hundred and One in Base 18 Octodecimal
81402
dh4618
Eighty-One Thousand Four Hundred and Two in Base 18 Octodecimal
81403
dh4718
Eighty-One Thousand Four Hundred and Three in Base 18 Octodecimal

Scientific Notation

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

8.1400e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000153f265d692c818

The reciprocal of 81400 in Base 18 Octodecimal.

Palindrome?

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

The number dh4418 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 four hundred is a composite number with 48 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand four hundred is a composite number with 48 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 four hundred has the following 4 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
11
b18
Eleven in Base 18 Octodecimal
37
2118
Thirty-Seven in Base 18 Octodecimal

Prime Factorization

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

2183 · 5182 · b181 · 21181 = dh4418

Base Conversions

The number eighty-one thousand four hundred in 35 different bases