The Number

81242

Eighty-One Thousand Two Hundred and Forty-Two

In Base 16 Hexadecimal Is

13d5a16

The numbers with a 16 subscript use Base 16 Hexadecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81239
13d5716
Eighty-One Thousand Two Hundred and Thirty-Nine in Base 16 Hexadecimal
81240
13d5816
Eighty-One Thousand Two Hundred and Forty in Base 16 Hexadecimal
81241
13d5916
Eighty-One Thousand Two Hundred and Forty-One in Base 16 Hexadecimal
81243
13d5b16
Eighty-One Thousand Two Hundred and Forty-Three in Base 16 Hexadecimal
81244
13d5c16
Eighty-One Thousand Two Hundred and Forty-Four in Base 16 Hexadecimal
81245
13d5d16
Eighty-One Thousand Two Hundred and Forty-Five in Base 16 Hexadecimal

Scientific Notation

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

8.1242e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ce82575c4b8ce16

The reciprocal of 81242 in Base 16 Hexadecimal.

Palindrome?

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

The number 13d5a16 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 two hundred and forty-two is a composite number with 12 total factors (including 1 and itself).   See primes in Base 16 Hexadecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand two hundred and forty-two is a composite number with 12 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 two hundred and forty-two has the following 3 prime factors:

2
216
Two in Base 16 Hexadecimal
7
716
Seven in Base 16 Hexadecimal
829
33d16
Eight Hundred and Twenty-Nine in Base 16 Hexadecimal

Prime Factorization

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

2161 · 7162 · 33d161 = 13d5a16

Base Conversions

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