The Number

1643

One Thousand Six Hundred and Forty-Three

In Base 12 Duodecimal Is

b4b12

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1640
b4812
One Thousand Six Hundred and Forty in Base 12 Duodecimal
1641
b4912
One Thousand Six Hundred and Forty-One in Base 12 Duodecimal
1642
b4a12
One Thousand Six Hundred and Forty-Two in Base 12 Duodecimal
1644
b5012
One Thousand Six Hundred and Forty-Four in Base 12 Duodecimal
1645
b5112
One Thousand Six Hundred and Forty-Five in Base 12 Duodecimal
1646
b5212
One Thousand Six Hundred and Forty-Six in Base 12 Duodecimal

Scientific Notation

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

1.643e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00107549294864514412

The reciprocal of 1643 in Base 12 Duodecimal.

Palindrome?

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

The number b4b12 is 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 forty-three is a composite number with 4 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

One thousand six hundred and forty-three 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 forty-three has the following 2 prime factors:

31
2712
Thirty-One in Base 12 Duodecimal
53
4512
Fifty-Three in Base 12 Duodecimal

Prime Factorization

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

27121 · 45121 = b4b12

Base Conversions

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