The Number

81009

Eighty-One Thousand and Nine

In Base 9 Nonary Is

1331109

The numbers with a 9 subscript use Base 9 Nonary notation.

For more familiar numbers: See Eighty-One Thousand and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81006
1331069
Eighty-One Thousand and Six in Base 9 Nonary
81007
1331079
Eighty-One Thousand and Seven in Base 9 Nonary
81008
1331089
Eighty-One Thousand and Eight in Base 9 Nonary
81010
1331119
Eighty-One Thousand and Ten in Base 9 Nonary
81011
1331129
Eighty-One Thousand and Eleven in Base 9 Nonary
81012
1331139
Eighty-One Thousand and Twelve in Base 9 Nonary

Scientific Notation

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

8.1009e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000065033840181468879

The reciprocal of 81009 in Base 9 Nonary.

Palindrome?

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

The number 1331109 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 and nine is a composite number with 6 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Eighty-one thousand and nine is a composite number with 6 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 and nine has the following 2 prime factors:

3
39
Three in Base 9 Nonary
9001
133119
Nine Thousand and One in Base 9 Nonary

Prime Factorization

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

392 · 1331191 = 1331109

Base Conversions

The number eighty-one thousand and nine in 35 different bases