The Number

81438

Eighty-One Thousand Four Hundred and Thirty-Eight

In Base 18 Octodecimal Is

dh6618

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

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

Nearby Numbers

Positive, nonzero integers within three units

81435
dh6318
Eighty-One Thousand Four Hundred and Thirty-Five in Base 18 Octodecimal
81436
dh6418
Eighty-One Thousand Four Hundred and Thirty-Six in Base 18 Octodecimal
81437
dh6518
Eighty-One Thousand Four Hundred and Thirty-Seven in Base 18 Octodecimal
81439
dh6718
Eighty-One Thousand Four Hundred and Thirty-Nine in Base 18 Octodecimal
81440
dh6818
Eighty-One Thousand Four Hundred and Forty in Base 18 Octodecimal
81441
dh6918
Eighty-One Thousand Four Hundred and Forty-One in Base 18 Octodecimal

Scientific Notation

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

8.1438e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000153bb34af75hc18

The reciprocal of 81438 in Base 18 Octodecimal.

Palindrome?

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

The number dh6618 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 and thirty-eight is a composite number with 24 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 and thirty-eight is a composite number with 24 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 and thirty-eight has the following 4 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
7
718
Seven in Base 18 Octodecimal
277
f718
Two Hundred and Seventy-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

2181 · 3181 · 7182 · f7181 = dh6618

Base Conversions

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