The Number

1978

One Thousand Nine Hundred and Seventy-Eight

Nearby Numbers

Positive, nonzero integers within three units

1975
One Thousand Nine Hundred and Seventy-Five
1976
One Thousand Nine Hundred and Seventy-Six
1977
One Thousand Nine Hundred and Seventy-Seven
1979
One Thousand Nine Hundred and Seventy-Nine
1980
One Thousand Nine Hundred and Eighty
1981
One Thousand Nine Hundred and Eighty-One

Scientific Notation

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

1.978e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005055611729019212

The reciprocal of 1978.

Palindrome?

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

The number 1978 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 nine hundred and seventy-eight is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One thousand nine hundred and seventy-eight is a composite number with 8 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 nine hundred and seventy-eight has the following 3 prime factors:

2
Two
23
Twenty-Three
43
Forty-Three

Prime Factorization

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

21 · 231 · 431 = 1978

Base Conversions

The number one thousand nine hundred and seventy-eight in 35 different bases