The Number

1220

One Thousand Two Hundred and Twenty

Nearby Numbers

Positive, nonzero integers within three units

1217
One Thousand Two Hundred and Seventeen
1218
One Thousand Two Hundred and Eightteen
1219
One Thousand Two Hundred and Nineteen
1221
One Thousand Two Hundred and Twenty-One
1222
One Thousand Two Hundred and Twenty-Two
1223
One Thousand Two Hundred and Twenty-Three

Scientific Notation

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

1.220e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000819672131147541

The reciprocal of 1220.

Palindrome?

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

The number 1220 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 twenty is a composite number with 12 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 twenty is a composite number with 12 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 twenty has the following 3 prime factors:

2
Two
5
Five
61
Sixty-One

Prime Factorization

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

22 · 51 · 611 = 1220

Base Conversions

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