The Number

161

One Hundred and Sixty-One

In Base 9 Nonary Is

1889

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

For more familiar numbers: See One Hundred and Sixty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

158
1859
One Hundred and Fifty-Eight in Base 9 Nonary
159
1869
One Hundred and Fifty-Nine in Base 9 Nonary
160
1879
One Hundred and Sixty in Base 9 Nonary
162
2009
One Hundred and Sixty-Two in Base 9 Nonary
163
2019
One Hundred and Sixty-Three in Base 9 Nonary
164
2029
One Hundred and Sixty-Four in Base 9 Nonary

Scientific Notation

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

1.61e2

Reciprocal

A number multiplied with its reciprocal is one.

0.00446677838643215529

The reciprocal of 161 in Base 9 Nonary.

Palindrome?

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

The number 1889 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

One hundred and sixty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

One hundred and sixty-one is a composite number with 4 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 one hundred and sixty-one has the following 2 prime factors:

7
79
Seven in Base 9 Nonary
23
259
Twenty-Three in Base 9 Nonary

Prime Factorization

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

791 · 2591 = 1889

Base Conversions

The number one hundred and sixty-one in 35 different bases