The Number

1642

One Thousand Six Hundred and Forty-Two

Nearby Numbers

Positive, nonzero integers within three units

1639
One Thousand Six Hundred and Thirty-Nine
1640
One Thousand Six Hundred and Forty
1641
One Thousand Six Hundred and Forty-One
1643
One Thousand Six Hundred and Forty-Three
1644
One Thousand Six Hundred and Forty-Four
1645
One Thousand Six Hundred and Forty-Five

Scientific Notation

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

1.642e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0006090133982947625

The reciprocal of 1642.

Palindrome?

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

The number 1642 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 forty-two is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

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

2
Two
821
Eight Hundred and Twenty-One

Prime Factorization

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

21 · 8211 = 1642

Base Conversions

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