The Number

1280

One Thousand Two Hundred and Eighty

In Base 11 Undecimal Is

a6411

The numbers with a 11 subscript use Base 11 Undecimal notation.

For more familiar numbers: See One Thousand Two Hundred and Eighty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1277
a6111
One Thousand Two Hundred and Seventy-Seven in Base 11 Undecimal
1278
a6211
One Thousand Two Hundred and Seventy-Eight in Base 11 Undecimal
1279
a6311
One Thousand Two Hundred and Seventy-Nine in Base 11 Undecimal
1281
a6511
One Thousand Two Hundred and Eighty-One in Base 11 Undecimal
1282
a6611
One Thousand Two Hundred and Eighty-Two in Base 11 Undecimal
1283
a6711
One Thousand Two Hundred and Eighty-Three in Base 11 Undecimal

Scientific Notation

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

1.280e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0010490396a7349a83611

The reciprocal of 1280 in Base 11 Undecimal.

Palindrome?

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

The number a6411 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 eighty is a composite number with 18 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and eighty is a composite number with 18 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 eighty has the following 2 prime factors:

2
211
Two in Base 11 Undecimal
5
511
Five in Base 11 Undecimal

Prime Factorization

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

2118 · 5111 = a6411

Base Conversions

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