The Number

1240

One Thousand Two Hundred and Forty

Nearby Numbers

Positive, nonzero integers within three units

1237
One Thousand Two Hundred and Thirty-Seven
1238
One Thousand Two Hundred and Thirty-Eight
1239
One Thousand Two Hundred and Thirty-Nine
1241
One Thousand Two Hundred and Forty-One
1242
One Thousand Two Hundred and Forty-Two
1243
One Thousand Two Hundred and Forty-Three

Scientific Notation

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

1.240e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0008064516129032258

The reciprocal of 1240.

Palindrome?

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

The number 1240 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 two hundred and forty is a composite number with 16 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and forty is a composite number with 16 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 two hundred and forty has the following 3 prime factors:

2
Two
5
Five
31
Thirty-One

Prime Factorization

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

23 · 51 · 311 = 1240

Base Conversions

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