The Number

1661

One Thousand Six Hundred and Sixty-One

In Base 4 Quaternary Is

1213314

The numbers with a 4 subscript use Base 4 Quaternary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1658
1213224
One Thousand Six Hundred and Fifty-Eight in Base 4 Quaternary
1659
1213234
One Thousand Six Hundred and Fifty-Nine in Base 4 Quaternary
1660
1213304
One Thousand Six Hundred and Sixty in Base 4 Quaternary
1662
1213324
One Thousand Six Hundred and Sixty-Two in Base 4 Quaternary
1663
1213334
One Thousand Six Hundred and Sixty-Three in Base 4 Quaternary
1664
1220004
One Thousand Six Hundred and Sixty-Four in Base 4 Quaternary

Scientific Notation

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

1.661e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0000021313102230000021313102234

The reciprocal of 1661 in Base 4 Quaternary.

Palindrome?

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

The number 1213314 is not a palindrome.

Not A Prime Number

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

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

A Composite

Composites have more than just these two factors.

One thousand six 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 thousand six hundred and sixty-one has the following 2 prime factors:

11
234
Eleven in Base 4 Quaternary
151
21134
One Hundred and Fifty-One in Base 4 Quaternary

Prime Factorization

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

2341 · 211341 = 1213314

Base Conversions

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